Ever wondered how the parts inside an AR15 work together? Just exactly how does the reciprocating bolt carrier feed rounds from the magazine? How do the elements in the trigger group work and reset after each shot? How does the gas system bleed gas from the barrel and operate the bolt carrier? These and other questions are answered in this eye-opening video from 45Snipers. Using “cutaway” 3D computer animation, this 5-minute video shows all features of an AR15 inside and out. This fascinating firearms animation allows the viewer to look inside the upper and lower receivers, into the bolt carrier, chamber, barrel, and magazine.
This video starts off slow and has annoying background music, but it is well worth watching if you own or shoot any AR-platform rifle. It illustrates all the key operations during the charging, loading, firing, and ejection processes. The cutaway animation shows how rounds are stripped from the magazine and then chambered. It then shows how every part of the trigger group works, and how the firing pin strikes the primer. You can even watch the bullet move down the barrel before the empty shell casing is removed from the chamber and tossed out the ejection port. Here are sample frames from the video:
Video find by Grant Ubl. We welcome reader submissions.
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Can you buy a new firearm for fifty bucks? Yes you can, when the “firearm” is a stripped lower receiver, the key component of an AR15-type rifle. With an AR lower, you can build your own “black rifle” project, which could be a gun for Service Rifle competition, or a specialized varmint-slayer, or a rig for 3-Gun matches — the choice is yours. Once you have the serialized lower (which must be transferred through an FFL dealer), you can build your own project as you see fit, with the trigger, barrel, stock, handguards, and sighting system of your choice.
Right now Sportsman’s Guide is offering a great deal on Anderson stripped lower receivers. You can purchase the lower for just $49.99 ($44.99 for Buyer’s Club Members). These are good-quality lowers, with correct mil-spec dimensions, and precision-machined to ensure drop-in installation of aftermarket components. Crafted from 7075-T6 aircraft-grade aluminum forgings, the made-in-USA Anderson lowers have a hard-anodized black finish. The take-down pin has a standard 0.250″ diameter.
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The rear stock and grip (shown above) come from the commercial LUCID AR Stock Kit. But Forum member Brian V. custom-made this one-piece walnut forearm.
Forum member Brian V. (aka “Carbide”) wanted a new look for his “modern sporting rifle”. He was tired of looking at black plastic (or FDE, OD green) and aluminum components on his AR15. So he decided to fit wood “furniture” on the rifle. He ordered a wood butt-stock and fore-arm set made by Lucid, but he didn’t like the two-piece fore-arm of the Lucid stock set. He decided he could build something better than the commercially-available, Lucid-made wood fore-arm.
Lathe-Turned Custom Walnut Sleeve in Front
So Brian took his existing AR tubular fore-arm and epoxied a walnut sleeve to it. With a lathe, Brian then turned the walnut sleeve to his desired dimensions: 2.250″ diameter in back and 2.200″ diameter in front, so there’s a little taper. Brian says “I could have gone a little thinner.” The wood fore-end was then sanded and stained to match the Lucid-made rear section. Brian says “the stain is not quite a perfect match, but but it looks a lot better.”
Does Brian like his new wood-stocked AR? Absolutely. He says the conversion makes the gun more user-friendly: “The wood is warmer to carry in winter and quieter.” He adds that the wood sleeve added about four ounces of weight to the fore-end, but that did not affect the handling.
We think this is a good “do-it-yourself” project that could be done by many of our readers. You can simply install the Lucid stock set or customize the front end like Brian did. Either way, you end up with a good-looking rifle that feels better in your hands.
For pure shooting fun it’s hard to beat a semi-auto .22 LR. While Ruger’s 10/22 is the most popular semi-auto .22 LR rifle, manufacturers are now offering AR-style self-loading rimfire rifles. These rimfire versions of the AR-15 are excellent training tools for 3-Gun and service rifle shooters. You can practice with less expensive rimfire ammo, and save wear and tear on your centerfire ARs. Rimfire AR clones also work great for Rimfire Tactical Matches.
AR-Style .22 LR Rimfire Rifles
Smith & Wesson M&P 15-22
Smith & Wesson’s 15-22 is a nice little rifle. The M&P 15-22 is designed and built as a true .22 LR semi-auto from the ground up, with ergonomics (and most controls) identical to a centerfire M&P 15 rifle. These rimfire AR clones are very affordable. For example, right now CDNN Sports is offering the M&P 15-22 (black/tan camo version) for just $299.99. (If that deal has expired by the time you read this, find other deals with the SlickGuns.com search engine.)
NRA reviewer Colon Noir tested the M&P 15-22 and was impressed: “This gun is unbelievably fun to shoot. There is virtually no recoil. The non-existent recoil makes shooting fast a breeze. Yeah, the magazine is a little quirky… but in the grand scheme of things, this gun feels like a full-out AR-15. The M&P 15-22 makes for a great training companion. I would place this gun in the ‘Fun Box’ — it’s reliable enough that you can have a fun time shooting. I’m picking one up, because it’s guns like these that make you truly realize how fun shooting is.”
Here’s a Video Review of the M&P 15-22 by the NRA’s Colin Noir
Hechler & Koch (Walther) HK 416
H&K offers the HK 416 D145RS, a dedicated .22 LR rimfire rifle. Engineered and built in Germany by Carl Walther, the HK 416 D145RS features a match-grade precision barrel, metal upper and lower receivers, retractable stock, and machined rail interface system with on-rail iron sights.
These Walther-made HK rimfire rifles (which employ a blow-back action) are accurate and reliable. They are also reasonably priced. Right now CDNN Sports is selling the HK 416 D145RS 22LR for just $379.99. Elsewhere it sells for $550.00 or more. One purchaser writes: “Great .22. I have had this gun a couple of months and have put about 500 rounds of 5 different brands of ammo through it. Not one FTE. I have shot other brands that can’t get through one 30-round mag without a failure. [The 416] is a little pricey compared to the competition but you get what you pay for.”
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For sheer versatility, it is hard to beat the AR-15 platform. An AR can function in a multitude of roles — defending your home, hunting varmints, or competing in Service Rifle or High Power matches. If you’re planning a new AR project, it all starts with the lower. That’s the part that carries the serial number and is logged into the books of your FFL. Once you’ve got your lower, then the fun begins — you choose all the other components: trigger group, stock, handguards, and upper.
Right now, Brownells is running a great deal on stripped lower receivers. You can get an Aero Precision Stripped Lower for just $59.99. It’s hard to beat that price. Aero Precision is a good manufacturer that makes durable and dimensionally-correct lowers. And these lowers are backed by Brownells’ 100% Satisfaction Guarantee.
Aero Precision Lower Receiver Features
This small pin, mil-spec lower receiver is precision-machined from a 7075 T6 aluminum forging. This versatile lower can be the foundation for rifle builds on 5.56/.223, 6.5mm, 6.8mm, 300 AAC Blackout, 9mm Luger, or other chamberings. Holes, inletting and pin locations have been cut to final dimensions and accept standard AR-15 magazines and components. The safe/fire switch position indicators are stamped on the receiver. FFL required for purchase.
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Planning to put together an AR-platform rifle? Or are you looking to upgrade your AR with a new barrel, stock, or trigger group? Then you should check out the AR-15 Rifle Build DVD from our friends at UltimateReloader.com. This DVD covers all the details of a custom build, using high-resolution video sequences, and helpful supporting graphics.
In this DVD, Gavin Gear guides you through the entire process including selecting components, acquiring and using the necessary tools, assembly steps and details for each component, and even mounting a scope. Building an AR-15 can be overwhelming, but with the right guidance and help it’s not difficult and is a lot of fun. With this DVD you’ll be able to build your AR-15 with confidence.
Right now, as a New Year’s promotion, the AR-15 Build DVD is on sale for just $9.90 (plus $3.80 shipping/handling). This DVD can pay for itself many times over by showing you how to do your own gunsmithing (and get quality AR components at attractive prices).
Upper: Barrel / Gas Block / Gas Tube
Upper: Handguard Installation:
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Here’s an interesting $75 product that can help you “tune” the cycling force of your AR-platform rifle. Wilson Combat offers an Adjustable Lo-Profile AR Gas Block for direct gas impingement AR-type rifles. Wilson Combat’s adjustable gas block replaces a standard AR gas block and allows you to tune your AR’s gas system for smoother cycling and enhanced reliability. Wilson Combat explains: “Adjusting your rifle’s gas port will lower or increase your bolt’s cyclic rate. This tailors your rifle’s performance to your unique needs.” When varmint hunting with an AR, we like a less-energetic ejection so the brass lands close to the gun (and doesn’t tag fellow shooters).
A simple adjustment of the hex screw at the front of the block modulates the gas volume allowing you to tune your rifle’s function to your favorite loads. This is very handy when shooting non-standard AR calibers, unusual hand-loads, or suppressed rifles. Adjustable Gas Block systems are sold as complete kits starting at $74.95. Wilson Combat offers two diameters (.750″, .937″) and three lengths (Carbine Length, Mid-Length, & Rifle Length), so you can select the right dimensions for your rifle configuration and barrel diameter. The blocks are Chromoly steel with a Melonited finish.
Package Includes:
Adjustable Gas Block (Melonite Finish)
Adjustment Set Screw (Installed)
Straight Gas Tube (Installed, Gas Tube Pin Installed)
12″-Long Allen Wrench to Adjust Inside Handguard
$74.95 MSRP
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At the request of our readers, we have launched a “Deals of the Week” feature. Every Monday morning we offer our Bargain Selections. Here are some of the best deals on hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Optics Planet — Multiple Coupons Plus $15 Off $150+ Order
Right now Optics Planet is running numerous holiday specials, including 35 Seasonal Promotions, 21 Coupon Offers, 27 Mail-In Rebates, and 13 Instant Rebates. Plus you can get $15 off orders of $150.00 or more with Code A1DA0E7. Visit Optics Planet’s DEALS Page for all the offers.
CDNN Sports has some of the nicest modern Browning rifles we’ve seen. These X-Bolt Medallion Rifles feature figured Maple stocks with engraved receivers. The barrels, Octagon for the Limited models, are deep polished blue. The actions are glass-bedded and fit a detachable rotary magazine. The .30-06 Maple X-Bolt Medallion is marked down from $1069.99 to $899.99. The X-Bolt Limited Editions, available in a wide variety of chamberings, are on sale for $1199.99. These are very nice rifles that any shooter would be proud to own.
3. Amazon — Complete RCBS Rock Chucker Master Reloading Kit
This RCBS Rock Chucker Supreme Master Reloading Kit contains everything one could need to produce accurate handloads. The Rock Chucker press will last a lifetime and the powder measure is durable and reliable — we know, we’ve used them for years. The RCBS hand-priming tool does the job effectively, and the balance scale can be quite accurate with some tweaking. Overall, at $299.99, this is a great value considering all that you get. RCBS also offers a rebate on this Kit.
4. Midsouth — 500 Rounds of Norma .22 LR for $49.99
If you need good, reliable ammo for plinking or rimfire cross-training, look no further. At ten cents per round, this Norma-brand Tac 22 ammo is very affordable. We’ve used this ammo for tactical rimfire matches and it has proven more than adequate. This is a limited time offer at Midsouth Shooters Supply, so don’t delay.
5. Sportsman’s Guide — Get 20% OFF First Order
Now through the end of Decenmber, Sportsman’s Guide is offering new customers 20% off their first order with a cap of $30.00. Use Coupon Code TAKEOFF20% at Checkout. This will knock 20% off a maximum of $150.00 in merchandise value so the total savings will not exceed $30.00. Still, that’s an attractive offer (as long as you understand the limitations). NOTE: This discount can not be used for firearms or Buyer’s Club Membership fees, and this offer may be only claimed once per customer.
6. Amazon — Lyman Case Prep Xpress $94.99
The Lyman Case Prep Xpress lets you chamfer inside and out, brush your necks, clean/uniform primer pockets, and ream military crimps. This unit sells elsewhere for $120.00 or more. Here is a review from a Verified Purchaser: “The unit is quiet, sturdy, and the attachments do what they are supposed to do. It already has made a difference in my reloading speed, and most importantly, my comfort. I highly recommend this unit.” (Strafer, 4/7/14)
7. Palmetto State Armory — AR-15 Days of Christmas Deals
Looking to assemble an AR platform rifle for gun games, varmint hunting, or other purposes? With its AR-15 Days of Christmas promotion, Palmetto State Armory is continuing some of its best Black Friday deals throughout December. Save on complete Lowers, complete Uppers, and other components. The PSA complete lower with Magpul stock shown above is a very good deal.
8. Widener’s — 1000 Rounds of 9mm HP Ammo for $219.00
If you are looking for first-quality, original production 9mm Luger ammo loaded with hollowpoints (as opposed to FMJ bullets), this deal is hard to beat. The ammo features a quality 115gr JHP (lead core) bullet and the same powder used by the Israeli military. With mil-spec velocity, this IMI 9mm JHP Ammo is hard-hitting, yet extremely accurate. Widener’s tells us that “This ammo has not been offered in the USA for several years”. If you need a stock of 9mm defense ammo, here you go.
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The days of black rifles at Walmart are over apparently. Walmart plans to halt sales of AR-platform rifles and other mag-fed semi-automatic rifles (as well as certain semi-auto shotguns with capacities of 7+ rounds). Currently, AR-15s and other “modern sporting rifles” are sold in roughly one third of the company’s 4,600 U.S. stores. Walmart is the USA’s largest vendor of rifles and ammo, so this is a significant policy change that will impact sportsmen across the country.
Walmart says that its decision to stop selling semi-auto rifles is prompted by reduced demand for AR-type rifles, rather than by political pressures. Walmart spokesman Kory Lundberg told Bloomberg Business, “If you have a product customers aren’t buying, you phase it out,” he said. Shoppers “were buying shotguns and rifles, and so we are increasing assortment in that.” Lundberg stated that Walmart would sell down its remaining AR inventory to zero as stores transition from summer to fall merchandise. (Source: CTD Shooter’s Log, August 28, 2015).
In a recent CNN interview, Walmart CEO Douglas McMillon said: “Our focus, as it relates to firearms, should be hunters and people who shoot sporting clays, and things like that. So the types of rifles we sell, the types of ammunition we sell, should be curated for those things. We believe in serving those customers, we have for a long time, and we believe we should continue to.” But when asked if he would discontinue sales of semi-automatic long guns, McMillon said, “Yes.”
READ MORE About Walmart’s Decision to Halt AR Sales
by Dennis Santiago
Tricked-out match guns are fun but, if you want to prove that you’ve got an eagle eye and steady hands, a true test of skill is the Civilian Marksmanship Program’s As-Issued Four Gun Aggregate.
The Four Gun Aggregate encompasses a series of CMP John C. Garand 30-shot matches (200-yard As-Issued Military Rifle Match Course A) on NRA SR targets at one of the CMP Regional Games or the Nationals officiated by the CMP. These are the only places you can earn the coveted neck-ribbon CMP achievement medals.
You will need four as-issued rifles. The first is the M-1 Garand. (The course of fire is named after this rifle’s inventor.) This remarkable battle rifle will test your prowess at slow prone, rapid prone, and offhand. The match winner will put almost all bullets into a saucer.
You do get to hear that classic “ping” when the en bloc clip ejects with this gun. It’s a good idea to write your firing point number on your hand for each match because you will move around over the course of the tournament.
Next comes the hyper-accurate 1903 Springfield. You can use either the WW I M1903 or the later WW II M1903A3 model with peep sights. A Springfield will typically shoot groups half the size of a Garand with the same ammunition. Think potential in terms of tea cups instead of saucers.
If you shoot an AR-platform rifle, you could probably use one of these gadgets. A brass-catcher keeps your brass in good shape and saves you the hassle of picking up fired cases. Moreover, nearby shooters no longer have to fear being pelted with your hot brass.
The NRA America’s Rifle Challenge (ARC) is a new short-range rifle discipline designed to develop practical shooting skills using modern sporting rifles such the AR-15. NRA-ARC is designed for shooters of all skill levels. With all targets positioned at 100 yards or less, almost any outdoor centerfire range is capable of hosting ARC matches. No pits or swinging target holders are required.
The ARC is a close-range, action-oriented discipline. The course of fire features targets placed from seven yards to 100 yards. Some stages also incorporate magazine changes and the use of barricades. ARC matches involve movement, as competitors transition into multiple shooting positions: standing, kneeling/sitting, and prone.
NRA-ARC is NOT limited to AR-15s. Any semi-automatic detachable magazine-fed rifle can be used. There will be three classes of firearms: Iron Sights, Optics Limited (with one non-magnified optical sight), and Optics Open (maximum two optical sights, one of which may be magnified).
The Four Gun Aggregate encompasses a series of CMP John C. Garand 30-shot matches (200-yard As-Issued Military Rifle Match Course A) on NRA SR targets at one of the CMP Regional Games or the Nationals officiated by the CMP. These are the only places you can earn the coveted neck-ribbon CMP achievement medals. 
