Here’s something you may not have seen before — a left-port, side-charging AR15 Upper. This unit was developed by John Scandale of Keystone Accuracy. While this was designed for left-handed High Power shooters, the lefty upper also works well for right-handed F-TR shooters. This design allows a prone shooter to single-load with his left hand, an efficient system for a right-handed shooter. Here is a review of the lefty upper from GS Arizona, who created the Rifleman’s Journal website. Like John Scandale, GS is a southpaw.
The Lefty AR Upper from Keystone Accuracy
by GS Arizona
We left-handed shooters are always the last to get the benefit of new firearms developments, or so it seems to us most of the time. There is no rifle more popular today than the AR15, whether for competitive shooting or plain recreational use; but even for that ubiquitous black rifle, left-handed items are few and far between. However, Keystone Accuracy run by left-handed High Power shooter John Scandale has some good stuff for us.
John is a long time High Power shooter, a member of the National Guard’s All-Guard rifle team and a Distinguished Rifleman. He knows exactly what makes a good High Power rifle — unlike many of the mail-order parts and pieces you see offered for sale by someone who only shoots his computer keyboard… John is a real shooter, I’ve known him for many years and trust his work.
The most interesting item from Keystone is the left-hand billet upper receiver for the AR15 match rifle. This thick-wall, CNC-machined piece appears to be very durable and fits all existing AR15 lower receivers.
When the AR15 was becoming popular in High Power shooting in the mid-1990s, I had a match rifle built on one. To solve the left-hand problem, I had a second port milled into the left side to allow me to load the rifle comfortably in slow-fire, single-load matches. Unfortunately, sometimes the round I flicked into the left port would fall right out of the right port! That was a bit frustrating and this receiver, along with an appropriate left-handed bolt assembly will work for the lefty just as we desire.
I’ve seen quite a few AR15 based rifles in F-TR at our local club matches over the past year. This upper would be a good choice for many right-handed shooters using the AR for F-Class as it allows loading with the left hand while the right hand remains on the pistol grip and ready to fire when the target appears. In light of the fact that the bolt release is on the left side, that makes life a lot simpler than using the right hand! So if you’re a left-handed shooter or even a right-handed F-Class shooter, give this some thought, it might be just what you’ve been waiting for and didn’t even know it!
If you own an AR, you’ve probably heard of the hot, new .224 Valkyrie cartridge. Basically a 6.8 SPC necked down to .22, the Valkyrie has a shorter case than the .223 Remington (and 5.56×45 NATO). This allows you to load the longest, heaviest .224-caliber bullets and still feed reliably from an AR15-type magazine. With Sierra’s remarkable new 95-grain MatchKing, this gives the little Valkyrie long-range performance that can rival some much larger cartridge types. Sierra Bullets states: “The [Valkyrie] case length is shorter than the 223 Remington affording the use of heavier match-grade bullets with very long ogives and high ballistic coefficients. This offers … super-sonic velocities at ranges greater than the .223 Remington and the 6.5 Grendel can achieve at magazine length”.
If you’re considering a .224 Valkyrie, you’re in luck — Sierra Bullets has just released comprehensive LOAD DATA for this new cartridge. Sierra has published loads for a broad range of bullet weights from 52 grains all the way up to 95 grains. Loads for 20 bullet types and 22 powders* are listed.
Shown below is Sierra’s load data for bullet weights from 77 grains to 90 grains. Values in green indicate MAXIMUM loads — use CAUTION. NOTE: This is only a partial sample, less than a third of the data Sierra has published. Download Sierra’s Full 4-page PDF to view all the data, including load information for Sierra’s new 95gr .224-caliber MatchKing with claimed 0.600 G1 BC.
The new .224 Valkyrie was introduced late last year as a Hot Rod cartridge that will work in AR15s. Designed to rival the .22 Nosler while still running well in ARs, the new .224 Valkyrie offers excellent long-range performance when loaded with modern, high-BC bullets. We expect some bolt-action PRS shooters might adopt the .224 Valkyrie. Why? Reduced recoil. With the 90gr SMK, the .224 Valkyrie offers ballistics similar to the 6.5 Creedmoor but with significantly less felt recoil. Check out this chart from Federal showing comparative recoil levels:
* All the following powders were tested, but not all for each bullet weight: Accurate 2520, Accurate XMR 2495, Accurate 4064, Hodgdon AR Comp, Hodgdon Benchmark, Hodgdon CFE 223, Hodgdon H335, Hodgdon H380, Hodgdon H4895, Hodgdon Varget, IMR 4064, IMR 4166, IMR 8208 XBR, Power Pro 2000 MR, Power Pro Varmint, Ramshot Big Game, Ramshot TAC, Reloder 10X, Reloder 15, Reloder 17, Vihtavuori N540, Winchester 760.
Velocity vs. barrel length — How much speed will I sacrifice with a shorter barrel? Hunters and competition shooters often ask that. Today we DO have solid answers to that question for many cartridge types thanks to Rifleshooter.com.
Bill, Rifleshooter.com’s Editor, explained his test procedure:
“I gathered four different types of factory Federal 224 Valkyrie ammunition, the 90gr Sierra MatchKing (SMK), 90gr Fusion soft point (SP) (referred to a Fusion MSR), 75gr Total Metal Jacket (TMJ) and 60gr Nosler Ballistic Tip Varmint (NBT). After a brief barrel break in and zero, I fired 5 rounds of each cartridge at each barrel length (except the 75 TMJ, I fired 4 rounds at each barrel length due to limited resources). I recorded the average muzzle velocity and standard deviation for each ammunition and barrel length combination and cut the barrel back 1 inch and repeated the process. I recorded barrel lengths from 28″ to 16.5″ (I try to save these barrels as finished 16″ tubes so they don’t go to waste).”
The Heavy Bullet 90gr Ammo Lost about 21 FPS per Inch
How did the test turn out? You’ll find all the results summarized in helpful tables with inch-by-inch velocity and SD numbers. For the two, 90gr ammo samples, results were similar. The 90gr SMK ammo started at 2782 fps (28″), finishing at 2541 fps (16.5″). That’s a loss of 241 fps, or 20.96 fps average per inch of length. The ammo loaded with 90gr Fusion SPs started at 2797 fps (28″) and ended at 2561 fps (16.5″), a drop of 236 fps. That’s 20.5 fps loss per inch. NOTE: Ambient temperature during the test was 45° F. You could expect the overall velocities to be a bit higher during hotter summer months.
With a the smaller bullets, the effect was even more dramatic. As you’d expect they started out faster. The ammo with 60gr Nosler Ballistic Tips (NBT), a good choice for varminters, started at 3395 fps (28″), and declined to 3065 fps (16.5), a total velocity drop of 330 fps. Average velocity loss was 28.7 fps per inch of barrel length. Rifleshooter.com also tested Federal 75gr TMJ ammo.
About the .224 Valkyrie Cartridge
The new .224 Valkyrie was introduced late last year as a Hot Rod cartridge that will work in AR15s. Designed to rival the .22 Nosler while still running well in ARs, the new .224 Valkyrie offers excellent long-range performance when loaded with modern, high-BC bullets. We expect some bolt-action PRS shooters might adopt the .224 Valkyrie. Why? Reduced recoil. With the 90gr SMK, the .224 Valkyrie offers ballistics similar to the 6.5 Creedmoor but with significantly less felt recoil. Check out this chart from Federal showing comparative recoil levels:
.224 Valkyrie vs. .22-250 Remington
The Social Regressive explains: “There are two key reasons why the 224 Valkyrie is unique and desirable. First, it is specifically designed to fit the limitations of the AR-15 platform. It does so even when loaded with gigantic bullets, like the 90-grain SMK that Federal announced. .22-250 Rem is too long and too fat to work in the AR-15 platform; it needs an AR-10 bolt and magazine.”
The new .224 Valkyrie is basically a 6.8 SPC case necked down to .22-caliber. You can use your existing AR15 lower, but you will need a dedicated .224-Valkyrie upper, or at the minimum a new barrel, modified bolt with proper bolt face, and 6.8-compliant mags.
Dick’s Sporting Goods, a major sporting goods retail chain, will stop selling AR-platform rifles, and require a minimum age of 21 years to purchase ANY and all firearms, not just handguns. In addition, the company will stop selling “high-capacity magazines”. The Chairman/CEO of Dick’s Sporting Goods, Edward W. Stack, announced these new policies yesterday (2/27/2018), while appearing on the Good Morning America TV show. Stack said the ban would begin immediately, with ARs and other mag-fed semi-automatic rifles being removed from all Dick’s stores (and deleted from the company’s website).
The action was prompted by the recent school shooting in Parkland, Florida. Stack stated: “As we looked at what happened in Parkland, we were so disturbed and saddened by what happened we felt we really needed to do something. When that happened we realized … we did everything by the book. We did everything that the law required, and he was still able to buy a gun. And when we looked at that, we said the systems that are in place across the board just aren’t effective enough to keep us from selling someone a gun like that.” Notably, Stack revealed that Nikolas Cruz, the Florida school shooter, had purchased a shotgun from Dick’s last year (however, that shotgun was NOT used in the shooting).
Dick’s Sporting Goods will no longer sell AR-platform rifles and other similar, semi-auto, mag-fed rifles. It is unclear if other, more traditional semi-auto centerfire rifles will still be sold.
Stack also urged elected officials to enact “common sense gun reform” by banning “assault-style” firearms (his terminology, not ours); raising the minimum age to purchase all firearms to 21; banning high-capacity magazines; banning bump stocks; and requiring more complete universal background checks that include relevant mental health information and previous interactions with law enforcement. Stack also hopes that a universal database of those banned from buying firearms is created, and that private sales without background checks are disallowed. (Source: IndyStar.com)
Previously, in late 2012, Dick’s removed semi-auto AR/AK-type rifles from its main retail stores in response to the school shooting at Sandy Hook. However, after a few months, sales of ARs and similar rifles resumed at Field & Stream stores operated by Dick’s.
There will be no going back this time, Stack said, emphasizing that the policy changes will be permanent. In an open letter, Stack announced: “We support and respect the Second Amendment, and we recognize and appreciate that the vast majority of gun owners in this country are responsible, law-abiding citizens. But we have to help solve the problem that’s in front of us.”
What do you think about this action by Dick’s Sporting Goods? You can express your views by clicking the Post Comment link below…
The most eye-catching display at SHOT Show 2018 was a 3D Hologram animation of the new SAR 9 pistol. Showing the pistol assembling itself in mid-air, the hologram was mesmerizing.
So many products — so little time. We saw some very interesting new products including new Berger Ammunition on our second day at SHOT Show. There were many interesting tools on displays as well as cool new rifles for hunters, varminters, long-range shooters, and tactical marksmen. We also met some old friends on Day Two, including the legend himself — Jerry Miculek.
To give you a feel for SHOT Show, here’s a nice teaser video filmed last year. This shows both Media Day and the events inside the Sands Convention Center. Though this is a year old, we definitely recommend it. Plus is has a LOT of pretty ladies. You won’t be disappointed — honest.
This Video is from 2017, But You Should Definitely Watch It — Lots of Pretty Ladies!
NEW — Berger Branded Ammunition in Lapua Brass
Berger Bullets + Lapua Brass in factory-loaded ammo. You asked for it. Now it’s here. The new line of Berger Ammunition was unveiled at SHOT Show this week at the Capstone Precision Group booth. Berger, Lapua, Vihtavuori, and SK Ammo are now all owned by Nammo Lapua, so we can have these great American-made bullets packaged with superior, European-made Lapua brass*. This is an exciting development. There will be three (3) lines of Berger Ammunition: Match Grade Target, Match Grade Hunting, and Match Grade Tactical. We’ll have a full report with field tests this spring.
NEW and IMPROVED — Lyman Higher Rez Borecam
Better. Sharper. Higher Resolution. The new, upgraded Lyman Borecam® Digital Borescope is a serious candidate for best gunroom tool of the year. We really liked the original Borecam and recommended it highly. But now the new version is a LOT better. Now offering 300k resolution, you can really see finer details inside your bore. Trust us — the difference is VERY Noticeable. We could see very fine detail as never before. We like the fact that the lens wand is marked like a ruler so you can see your insertion depth and the handle has an indexing mark so you can keep track of your rotation. Great product. NOTE: The 300K means the camera delivers 300,000 pixels, i.e. 0.3 megapixel. For a square this is about 550×550. For a standard aspect ratio, this is similar to 640×480 resolution.
NEW — Walther KK500 .22 LR 3P Competition Rifle
Walther unveiled a handsome new smallbore (.22 LR) competition rifle, the KK500. This is more compact, with a shorter length of pull, so it’s a great choice for smaller-framed competitors — women and junior. The new Walther KK500 position rifle features bold red/gray laminated grip and fore-end block, plus an eye-catching red bolt handle. Very nice rimfire rifle for serious 3P smallbore shooters.
NEW — RCBS 6-Station Brass Boss
We tried out the new Brass Boss from RCBS. This new machine features SIX (6) powered tool heads, plus brushes. Four of the tool heads run at variable speeds up to 350 rpm. Two other high-speed tool heads run up to 550 RPM. There is a convenient speed control knob on the side of the unit. This is a great feature — you can run at high RPM for hard jobs like removing military primer crimps, and then slow way down to do more precise tasks such as inside chamfering. We like the Brass Boss. It is a definite upgrade over the previous RCBS Trim-Mate. The new Brass Boss includes tools for all six stations: inside VLD chamfering tool, outside deburring tool, primer pocket cleaners (small/large), military crimp removers (small/large), primer pocket uniformers (small/large), case neck brushes (four diameters), and a tub of dry case neck lubricant. MSRP for the Brass Boss is $189.95. We expect “street price” to be around $155.00.
COOL — World’s Biggest Cutaway Cartridge?
At the Vista Outdoor booth, we saw a 4-foot tall replica rifle cartridge. This was a real eye-catcher. Many folks looking at the giant-sized mock cartridge had never seen a 3-D cutaway like this showing the construction of the primer along with the core and jacket of the bullet. Note to Vista Outdoor — Please send one of these jumbo cutaways for our AccurateShooter.com “Man-Cave”.
WILD — $18,000 Janz Plasma Finish Revolver
Holy Mother of Mercy. This stunning Janz pistol costs $18,000. You can buy an entry-level Honda Civic for that! But does that Honda have a rainbow-colored Plasma finish like the Janz? And can the Civic swap barrel and cylinder assemblies to shoot multiple calibers? These top-of-the line Janz wheelguns are crafted in Germany in very small numbers. Just remember, beauty doesn’t come cheap.
NEW — Leica HD-B 3000 Geovid Rangefinder Binoculars
When we looked through the new HD-B 3000 Leica Geovids we were stunned. Superb clarity and sharpness. And the laser ranging was instantaneous — amazingly fast. The new Geovid HD-B 3000 delivers linear distance determination up to 3,000 yards (2,750 meters). This combo binocular/LRF has an ABC® ballistic brain inside which can output holdover, click adjustment, and equivalent horizontal range (EHR). Barometric pressure, temperature and angle are also included in the measurements. Impressive.
FUN — Selfie Time with Jerry Miculek — The Man, the Legend
Where else but SHOT Show in Las Vegas can you get a selfie with the world’s greatest revolver shooter, the legendary Jerry Miculek. Jerry was signing autographs at the Hornady booth. Of course Jerry’s not just a wheelgun ace. He has been a top 3-Gun competitor and, at last year’s 2017 Industry Day at the Range, Jerry set a world rifle speed record shooting a S&W M&P15.
NEW — Lyman Brass Smith C-Frame Press
Lyman has three new cast-iron presses on display: an O-Frame Single Stage, and 8-station Turret, and this compact Brass Smith C-Frame Ideal open front press. We liked them all but we think this new C-Frame press is an exceptional value. With beefy cast-iron construction, it is much stiffer than other presses in this category. The compound linkage is smooth. The base is big enough to provide good stability. For someone looking for a second press, or a smaller press to take to the range, the new Lyman may be the right solution. Thumbs up.
WEIRD — Virtual Reality Self-Defense Simulator
At the NRA Booth, CarryGuard, the NRA’s insurance program, had a half-dozen high-tech Virtual Reality simulators. Visitors could put on a pair of VR goggles, and then experience a variety of threat scenarios. This helps gun owners recognize true threats and respond in a proper manner. We like the cool Virtual Reality technology, but it still seemed weird to see grown men wearing goofy VR headgear and waving their arms around like circus clowns.
BAD ASS — Victrix Heavy Metal Tactical Rifles
Victrix is an Italian rifle-maker that shows that has proven that the USA doesn’t have a monopoly on seriously “Bad Ass” weaponry. We saw a trio of Victrix Minerva Tactical rifles that look tough enough to survive the Zombie Apocalypse with ease. The Minerva’s beefy carry handle under the fore-end is an interesting feature — something similar might come in handy for big ELR rigs.
SMART — Burris Spotting Scope with Accessory Red Dot
Can you see an extra feature fitted to this Burris Signature HD Spotting Scope. Yep, that’s a Burris Red Dot Sight on the left side near the eyepiece. Smart idea — this helps you align the spotter quickly, particularly in low-light situations. After seeing this rig, we’re wondering how we might attach a red dot to our older spotting scopes. Hats off to Burris for this clever optics upgrade.
NEW and TEMPTING — Tikka T1x Rifle in .17 HMR
When we first revealed the impressive new Tikka T1x rimfire rifle in .22 LR, some readers said: “Well the .22 LR version is nice but will it be available in .17 HMR? That’s what I really want”. Well ladies and gentlemen, Tikka WILL sell a 17 HMR version of the T1x (see above). We saw this on display at SHOT Show and smiled. This gun has a very nice trigger, smooth running bolt, and the magazine is easy to seat (unlike some other recent rimfire rigs). Fitted with a nice 3-18X scope and bipod, this could be a great carry-around varmint rifle. We hope to test one this spring.
* NOTE: With some cartridge types for which Lapua brass is not currently made, other brands of brass may be used. However, most Berger Ammunition will feature Lapua brass.
Does your Black Rifle have a sloppy upper/lower fit? That can be annoying; what’s more, loose fit can limit accuracy potential. Here’s a clever solution for poor-fitting AR-15 and AR-10 upper and lower receivers. The new JP MicroFit takedown pins can improve even the sloppiest ARs, providing a rock-solid upper/lower receiver fit.
MicroFit pins come in three sizes and two types: standard (“mean”), oversized, and undersized, with types for both front and rear of the receivers. The mean pins match standard takedown pin sizes while the over- and under-sized vary by slightly more than .001″ (+/-) from the standard diameter. NOTE: Although most poor-fitting receivers are loose, some are too tight. Very tight receivers, such as post-Cerakote, can be remedied with the undersized pins.
Shown is JP Enterprises’ PSC-12™ upper assembly with LRP-07™ lower assembly.
“An AR with a loose upper/lower receiver… will not reach its accuracy potential. That was the goal with our original JP Tension Pin, but MicroFit™ pins provide the same result without tool-assisted takedown. The MicroFit pins require no modification to the receiver. They simply replace your current pins”, stated JP Enterprises founder John Paul.
JP’s MicroFit pins feature a polished black finish with a hard, durable QPQ coating. This provides smooth insertion/removal plus excellent corrosion resistance. All pins feature a two-faceted punch or bullet capturing recess. This allows the user to apply force to the pins safely without risking scratching the receiver. JP’s MicroFit pins are sold as both as individual pins and as replacement sets.
Do we really need a new, high-performance .22-caliber cartridge for the AR15 platform (aka MSR 15). Federal thinks so. Federal has introduced a .22-Caliber Hot Rod cartridge — the .224 Valkyrie. Designed to out-perform the .223 Rem and .22 Nosler while still running well in ARs, the new .224 Valkyrie offers excellent long-range performance when loaded with heavy, high-BC bullets.
The performance is impressive. Federal says that, when loaded with a 90-grain Sierra MatchKing bullet, the .224 Valkyrie will stay supersonic all the way to 1300 yards, while offering substantially less recoil than other AR-friendly cartridges such as the 6.5 Grendel.
Here are three videos that give insight into the .224 Valkyrie cartridge and rifle options. We think the two applications that make most sense for this new cartridge are: 1) PRS Gas Gun matches (Open Class) — you get 6mm Creedmoor ballistic performance with much less recoil for faster shot transitions; and 2) Long-Range (400+ yards) varminting — you get performance similar to a 22-250 in a cartridge that works with your existing AR15 lower. That will really help with those long shots on P-dogs.
.224 Valkyrie PRS Gas Gun Demo Run
The new .224 Valkyrie is basically a 6.8 SPC case necked down to .22-caliber. You can use your existing AR15 lower, but you will need a dedicated .224-Valkyrie upper, or at the minimum a new barrel, modified bolt with proper bolt face, and 6.8-compliant mags. In this video, a shooter runs a tactical course using a rig chambered for the .224 Valkyrie. You can see how it functions 100%. This video also provides ballistic comparisons with other “enhanced performance” AR15 cartridges.
.224 Valkyrie vs. .22-250 Remington
The Social Regressive explains: “There are two key reasons why the 224 Valkyrie is unique and desirable. First, it is specifically designed to fit the limitations of the AR-15 platform. It does so even when loaded with gigantic bullets, like the 90-grain SMK that Federal announced. .22-250 Rem is too long and too fat to work in the AR-15 platform; it needs an AR-10 bolt and magazine.”
Image from .224 Valkyrie Video from The Social Regressive, linked below.
“Does this mean that the 22-250 is now outmoded? Not even close. Varminters depend upon its flat trajectory and inherent accuracy. It’s a handloader’s dream cartridge, and the factory ammunition out there works well, too. If, however, you want a semiauto platform or you want to shoot longer distances, .224 Valkyrie looks like it will be the logical choice [with fast twist-rate barrels and high-BC bullets].”
New Savage MSR 15 in .224 Valkyrie
Savage Arms has a new AR15-platform rifle chambered in .224 Valkyrie. This will debut at SHOT Show 2018. The new Savage MSR 15 Valkyrie has some nice features: crisp two-stage trigger, adjustable gas system, and tough Cerakote finish on lower and upper. The 5R-rifled, 18″-long barrel comes from the factory with an effective muzzle brake. MSRP is $1499.00. We wish the barrel was a bit longer (at least 22″), but the adjustable gas system is a nice feature that lets you tune the cycling for your ammo and shooting discipline.
Savage has high hopes for this rifle. With 90gr Federal factory ammo, it produces only half the recoil of larger cartridges with similar long-range performance. Here is a video showing a prototype Savage with a 22-inch barrel. The Ammo was Federal Premium pushing a 90gr SMK at 2680 fps. Note how “calm” the rifle stays on the bags. There is no muzzle lift and rearward recoil is minimal (see 0:10). You could work a varmint field very effectively with this rifle.
Savage MSR 15 Tip from EdLongrange. We welcome reader submissions.
Here’s an interesting project — using a second-hand barrel to upgrade an AR15. Our friend Erik Cortina decided to make his AR15, originally chambered in 6.8 SPC, into a 6.5 Grendel. Erik acquired a “pre-owned” 6.5-06 match barrel through our Shooters’ Forum. Erik inspected the barrel with a bore-scope and confirmed it was in good shape after the first few inches (past the chamber).
The 6.5-06 barrel had more than enough length, so he trimmed off the chamber end, then contoured the barrel to fit his AR15. This is a smart way to upgrade a gun without spending $350 or more on a brand new barrel.
In the first video, Erik explains the process of converting his 6.8 SPC AR15 into a 6.5 Grendel: “I take the upper completely apart and pull barrel off which will be used to take dimensions for new barrel. The new barrel will be turned from an old competition heavy barrel. All the barrel reaming will be done using JGS reamers. I will also use JGS reamers to make a seating and F/L sizing die.”
In the second video, Erik contours the “pre-owned” barrel to fit his AR. He uses an old bolt-action 6.5-06 competition barrel and cuts it to 17″ long and contours it to fit his AR-15. The barrel is turned down on a manual lathe to .750″ outside diameter for the majority of its length in order to fit the gas system barrel block that is made for a .750″ barrel. After contouring, the barrel will be threaded and chambered.
Trigger images from PrimaryArms.com, which sells all the triggers reviewed here: Geissele, Elftmann, Timney, and ALG Defense.
Are you thinking of upgrading the trigger system for your AR-platform rifle? There are dozens of options available, from $45 up to $300. Thankfully, Brownells has created video reviews of some of the more popular AR trigger options from Timney, Geissele, and ALG Defense. And we included a video review of the highly-regarded Elftmann Match Trigger. If you want the best solution for Service Rifle competition, you might favor the Geisselle. For ease of installation, it’s hard to beat the Timney, a “drop-in” module. Like the Timney, the super-smooth Elftman is a drop-in module. At $249.00 it’s pricey, but it is one of the best AR triggers out there. If you’re on a tight budget, the best “bang for your buck” may be the “Perfected Mil-Spec” ALG which starts at around $45.00.
Geissele Enhanced Two-Stage Trigger
Geissele makes a variety of quality AR trigger sets both single-stage and two-stage. Many High Power competitors like the two-stage Geissele trigger. This delivers a repeatable, controlled pull through the first stage with a very clean break in the second stage. The Super Dynamic Enhanced Trigger, shown above, features a distinctive, trigger blade. Reviewer Thomas Conroy says: “The flat surface is very easy to press against. Both stages are light and very distinct.”
Elftmann Drop-In Match Trigger
Though pricey ($249.00 at PrimaryArms.com), we really like the Elftmann AR trigger. It combines the best of both worlds — the precision and smoothness of the Geissele with the Timney’s ease of installation. This single stage trigger is user-adjustable from 2.75 to 4 pounds pull weight. It is offered with either straight or curved trigger blade. Primary Arms says: “The amazingly short take-up, glass-rod crisp break and [near-zero] over-travel can be compared to the finest custom 1911 triggers.”
Timney Drop-In Trigger Module
This trigger module is available for both the AR15 and the AR10 platform (as covered in the above video). Timney triggers are easy to install and come with multiple pin size and pull-weight options. Reviewer Thomas Conroy confirms that the single-stage Timney “breaks cleanly and crisply. This trigger is modular, meaning that the trigger, sear, hammer, and spring are all encased in a bright, shiny yellow aluminum housing.”
ALG Defense Trigger — Higher-Quality Basic AR Trigger
According to Thomas Conroy, ALG triggers “are the perfected version of the standard, non-adjustable mil-spec original trigger. They have the same geometry, but are made to higher quality standards, and come with … hardened and smoothed-out sear contact surface to eliminate all grittiness.” These are also offered in a nickle-boron coated version. Available for under $45.00, the ALG is a well-made, low-cost option for shooters who want a better factory-type trigger system.
For More Information about These Triggers
Learn more about Geissele, Timney and ALG triggers, plus two more AR trigger options (CMMG and Rock River Arms) in a Trigger Comparison Review by Thomas Conroy on Ammoland.com.
We call them “black rifles”, but that shouldn’t refer to all the carbon and gunk on the inside. AR-platform rifles can be maintenance-intensive beasts. But some AR owners make the situation worse by not regularly cleaning important small parts, or by using too much oily/greasy lubricants in the wrong places. A properly maintained and lubricated AR15 can shoot hundreds of rounds (between cleanings) without a problem. If you learn where (and where not) to apply lubricant, you’ll find that your AR will run more reliably and the task of cleaning the bolt and bolt carrier will be less of a burden.
Here is a good video that explains AR-15 Cleaning and Maintenance. In this 30-minute NSSF video, Gunsite Academy instructor and gunsmith Cory Trapp discusses the proper way to clean and maintain the AR-15 carbine. Very knowledgeable, Trapp provides rock-solid advice for AR owners. Along with cleaning producedures, this video explains how to inspect key components and how to function-test your AR before each shooting session.
Velocity vs. barrel length — How much speed will I sacrifice with a shorter barrel? Hunters and competition shooters often ask that. Today we DO have solid answers to that question for many cartridge types thanks to 
Image from Social Regressive 
Trigger images from 
