This shocking photo of destroyed AR-15 bits and pieces was posted on Facebook by William Walter, a firearms instructor. William said this was “The worst AR-15 blow-up I have ever seen. The case head literally atomized …you can see the brass residue on the parts. The bolt was split in two also.”
There’s nothing inherently wrong with AR-platform rifles (well, except that they run dirty). Over the past six decades Eugene Stoner’s semi-automatic design has proven its merits in military and civilian applications. You may not know, but the original AR from 1955 was a .30-caliber. The Armalite AR-10 shot the 7.62×51 cartridge. Later, at the request of the U.S. Military, Armalite created a smaller version that became the M16/AR15. The rest was history. Now there are millions of AR “black rifles” in the hands of soldiers and sportsmen.
With so many ARs in circulation, it’s no surprise that some get used by folks who don’t know how to hand-load or otherwise fail to follow safe gun practices. The AR is actually a pretty sturdy rifle, but when it’s fed bad ammo, or abused, bad things can happen. Very bad things… commonly known as Kabooms.
The American Shooting Journal (ASJ) has compiled a set of particularly extreme AR Kabooms. Compiling the “evidence” from various web sites, ASJ has published nine (9) of the most Unbelievable AR-15 Fails. Here are two of the worst “AR-15 Fails”. CLICK HERE to see them all.
Nothing but busted parts after this catastrophic Kaboom…
Notice the bolt is still stuck in the barrel extension … with the rest of the gun in pieces.
Another view of this sad blow-up…
These catastrophic AR failures are eye-openers, that’s for sure. ASJ cautions: “Any weapon can fail if given the wrong ammunition, faulty reloads or a plugged barrel. Always be aware of what can happen at anytime if you fail to follow common sense and gun safety rules.”
ASJ Sources: Photobucket, Armory Blog, Pinterest, Northeastern Arms, Eric Nestor
The Civilian Marksmanship Program (CMP) has issued important rule changes for 2020. These cover Highpower Rifle (Centerfire), Smallbore Rifle (Rimfire), and Pistol. In addition, there are CMP Games rules changes. READ RULE CHANGES HERE.
The big news is that Eye and Hearing Protection are now MANDATORY for Highpower Rifle competitors and Pistol shooters in all CMP-affiliated matches. The 2020 CMP Highpower Rifle, Pistol, and CMP Games Rulebooks all contain the following rule:
“All competitors and competition officials are required to wear appropriate eye and hearing protection when on shooting range firing lines during highpower rifle or pistol firing. All competitors must comply with this requirement before they can participate in a CMP sponsored or sanctioned competition. Competitors are responsible for selecting their eyewear and hearing protection.”
Let there be no confusion, the CMP’s rule change notice adds: “The CMP and its sanctioned match sponsors will actively enforce this rule in 2020″.
In 2020, all CMP centerfire rifle and pistol shooters must employ Eye Protection and Hearing Protection.
Other important Rules Changes include:
1. Expansion of CMP Pistol Program rules for 3-Gun Match Pistol events.
2. Establishment of Smallbore Rifle Distinguished Badges.
3. Substantial reworking of rules for electronic scoring targets.
4. Rule Regarding “Resting” Magazine on Arm during Prone.
No More Mag Resting in Prone Position
Of note to Service Rifle and M1A shooters is a new rule that attempts to restrict a common practice of using the rifle magazine to support the gun on the arm while shooting prone. A few competitors were resting M1A or M16/AR magazines on their sling arms or shooting jacket sleeves. The prone position rule has been strengthened to state that while “a magazine may touch the shooting jacket sleeve … it may not rest on the jacket sleeve, jacket elbow pad, arm or ground. Competitors must control their prone positions to make they are not using the magazine to support the rifle in prone. Competitors can make sure their prone positions are not questioned by keeping the bottoms of rifle magazines visibly clear of sleeves or arms.
Smallbore Rifle Distinguished Badges
The Distinguished Rifleman Badge has been a treasured honor among highpower rifle shooters. Now this important award will be available to smallbore shooters as well. The Distinguished Badge Program, which dates back to the first Distinguished Marksman Badges awarded by the Army in 1884, is being expanded in 2020 to award two new badges for excellence in Smallbore Rifle competitions.
CMP 2020 Rules: Highpower, Smallbore, Pistol, CMP Games
Report based on article by Gary Anderson, DCM Emeritus
The CMP Competition Rulebooks that will govern CMP sponsored and sanctioned Highpower Rifle, Pistol, CMP Games and Smallbore Rifle competitions in 2020 have been approved by the CMP Rules Committee and are now posted on the CMP website. The 2020 rulebooks went into effect on the 1st of January. All four rulebooks can be downloaded from the CMP Competition Rulebooks webpage.
The most important changes in the 2020 Rules include a major expansion of CMP Pistol Program rules that now provide for 3-Gun Match Pistol events, the establishment of Smallbore Rifle Distinguished Badges, a change in eye and hearing protection use in Highpower Rifle and Pistol Matches from “strongly urged” to “required”, a substantial reworking of rules for electronic scoring targets and several rule clarifications in each of the four disciplines. All changes from the 2019 Rules can easily be identified in the new rulebooks because they are shown in underlined, red text (printed Rulebooks will have underlined text). A detailed summary of 2020 Rule Changes is presented at the end of this article.
Here are some 2020 CMP Rulebook changes that merit further explanation:
In our Shooters’ Forum, one member recently asked: “What makes an AR accurate? What parts on an AR can really affect accuracy — such as free-floating handguards, barrels, bolts, bolt carriers?” He wanted an honest, well-informed answer, not just sales pitches. Robert Whitley posted a very comprehensive answer to this question, based on his experience building and testing dozens of AR-platform rifles. Robert runs AR-X Enterprises, which produces match-grade uppers for High Power competitors, tactical shooters, and varminters.
Building an Accurate AR — What is Most Important
by Robert Whitley
There are a lot of things that can be done to an AR to enhance consistent accuracy, and I use the words “consistent accuracy” because consistency is a part of it (i.e. plenty of guns will give a couple great 5-shot groups, but won’t do a very good 10- or 20-shot groups, and some guns will shoot great one day and not so good on others).
Here are 14 key things we think are important to accuracy.
1. Great Barrel: You’ll want a premium match-grade barrel, well-machined with a good crown and a match-type chambering, true to the bore and well cut. The extension threads must also be cut true to the bore, with everything true and in proper alignment.
2. Rigid Upper: A rigid, heavy-walled upper receiver aids accuracy. The typical AR upper receiver was made for a lightweight carry rifle and they stripped all the metal they could off it to make it light to carry (which is advantageous for the military). The net result are upper receivers that are so thin you can flex them with your bare hands. These flexible uppers are “strong enough” for general use, but they are not ideal for accuracy. Accuracy improves with a more rigid upper receiver.
3. True Receiver Face: We’ve found that truing the receiver face is valuable. Some may argue this point but it is always best to keep everything related to the barrel and the bore in complete alignment with the bore (i.e. barrel extension, bolt, upper receiver, carrier, etc.).
4. Barrel Extension: You should Loctite or glue the barrel extension into the upper receiver. This holds it in place all the way front to back in the upper receiver. Otherwise if there is any play (and there typically is) it just hangs on the face of the upper receiver completely dependent on the face of the upper receiver as the sole source of support for the barrel as opposed to being made more an integral part of the upper receiver by being glued-in.
5. Gas Block: You want a gas block that does not impose pointed stress on the barrel. Clamp-on types that grab all the way around the barrel are excellent. The blocks that are pinned on with tapered pins that wedge against the barrel or the slip on type of block with set screws that push up from underneath (or directly on the barrel) can deform the bore inside of the barrel and can wreck the accuracy of an otherwise great barrel.
6. Free-Float Handguard: A rigid, free-float handguard (and I emphasize the word rigid) really makes a difference. There are many types of free-float handguards and a free-float handguard is, in and of itself, a huge improvement over a non-free-float set up, but best is a rigid set-up. Some of the ones on the market are small diameter, thin and/or flexible and if you are shooting off any type of rest, bipod, front bag, etc., a rigid fore-end is best since ARs want to jump, bounce and twist when you let a shot go, as the carrier starts to begin its cycle before the bullet exits the bore.
7. Barrel Contour: You want some meat on the barrel. Between the upper receiver and the gas block don’t go real thin with a barrel (we like 1″ diameter if it’s workable weight-wise). When you touch off a round and the bullet passes the gas port, the gas system immediately starts pressuring up with a gas impulse that provides vibrations and stress on the barrel, especially between the gas block back to the receiver. A heavier barrel here dampens that. Staying a little heavier with barrel contour through the gas block area and out to the muzzle is good for the same reasons. ARs have a lot going on when you touch off a round and the gas system pressures up and the carrier starts moving (all before the bullet exits the bore) so the more things are made heavier and rigid to counteract that the better — within reason (I’m not advocating a 12-lb barrel).
8. Gas Tube Routing Clearance: You want a gas tube that runs freely through the barrel nut, through the front of the upper receiver, and through the gas key in the carrier. Ensure the gas tube is not impinged by any of them, so that it does not load the carrier in a stressed orientation. You don’t want the gas tube bound up so that when the gas tube pressures up it immediately wants to transmit more force and impulse to the barrel than would normally occur. We sometimes spend a lot of time moving the gas block with gas tube on and off new build uppers and tweaking gas tubes to get proper clearance and alignment. Most gas tubes do need a little “tweaking” to get them right — factory tubes may work OK but they typically do not function optimally without hand-fitting.
9. Gas Port Tuning: You want to avoid over-porting the gas port. Being over-gassed makes the gas system pressure up earlier and more aggressively. This causes more impulse, and increases forces and vibration affecting the top end and the barrel. Tune the gas port to give the amount of pressure needed to function properly and adequately but no more.
10. Front/Back Bolt Play: If accuracy is the game, don’t leave a lot of front/back bolt play (keep it .003″ but no more than .005″). We’ve seen factory rifles run .012″ to .015″ play, which is OK if you need to leave room for dirt and grime in a military application. However, that amount of play is not ideal for a high-accuracy AR build. A lot of front/back bolt play allows rounds to be hammered into the chamber and actually re-formed in a non-consistent way, as they are loaded into the chamber.
11. Component Quality: Use good parts from a reputable source and be wary of “gun show specials”. All parts are NOT the same. Some are good, some are not so good, and some aftermarket parts are simply bad. Don’t be afraid to use mil-spec-type carriers; by and large they are excellent for an accuracy build. Also, remember that just because a carrier says “National Match” or something else on it does not necessarily mean it’s any better. Be wary of chrome-plated parts as the chrome plating can change the parts dimensionally and can also make it hard to do hand-fitting for fit and function.
12. Upper to Lower Fit: A good upper/lower fit is helpful. For quick and dirty fit enhancement, an Accu-Wedge in the rear helps a lot. The ultimate solution is to bed the upper to a specific lower so that the upper and lower, when together, are more like one integral unit. For the upper receivers we produce, we try to get the specs as close as we can, but still fit the various lowers in the market place.
13. Muzzle Attachments: Don’t screw up the muzzle (literally). Leave as much metal on the barrel at the muzzle as you can. People like to thread the muzzle for a flash hider, suppressor, muzzle brake, or some other attachment, but if you really want accuracy, leave as much metal as you can there. And, if you have something that screws on, set it up so that it can be put on and have it stay there without putting a lot of torque and stress on it right where the bullet exits the bore. If you are going to thread the end of the barrel, make it concentric with the bore and make sure what you screw on there is as well. For all muzzle attachments, also ensure that the holes through which the bullet passes through are dead true to the bore. Many aftermarket screw-on things are not so good that way. Anything that vents gas should vent symmetrically (i.e. if it vents left, it should vent equally right, and likewise, if it vents up, it should vent down equally). Uneven venting of gas can wreck accuracy.
14. Quality Ammunition: Ammo is a whole story by itself, but loads that are too hot typically shoot poorly in an AR-15. If you want accuracy out of an AR-15, avoid overly hot loads. Shown below are test groups shot with four (4) different uppers, all with moderate loads. These four uppers all pretty much had the same features and things done to them as explained in this article, and they all shot great.
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.
Forum member Kevin (aka “N10Sivern”), revealed he needs some help with a compulsion — a compulsion to keep buying more and more guns and ammo. Particularly ARs, all shapes and sizes of ARs. Way too many ARs. You could say he has an ARdiction….
In a Forum Thread, Kevin posted: “I may need an intervention. Trying to clean my office and pulled this stuff out. I’m missing an AR10 lower somewhere and an AR15 upper. I’ll find them before the day is done. I have a big box full of parts as well, and 4 barrels still in the cardboard tubes. Sigh. This is gonna be a lot of Cerakoting for me.”
Another Forum member said: “For the love of God, man. Delete this thread lest you be accused of hoarding!”
Kevin replied: “I guess I am hoarding a little. But it’s good hoarding right?”
And then he posted this “Mail Call” photo:
Kevin’s caption: “It only gets worse. Mail Call today: 20″ .308 Ballistics Advantage barrel, 26″ Savage 25-06 barrel, 700 pieces of .38 special, 300 pieces of .357 magnum, 500 pieces .308 Win, gas tube, Hornady Modified Case Gauge. I have more crap on the way too.”
Forum Member’s Chime In…
Kevin’s “Need Intervention” post drew plenty of comments from other Forum Members:
“God! It is so refreshing to see that my illness is widespread with little hope (or desire) for a cure. I smiled reading each post.” — Gary0529
“You know you have a problem when you open a drawer and find components you forgot you bought.” — JoshB
“It’s not hoarding if you intend to use it. Says he who has 12,000 primers.” — Uthink
“I guess I’ll go ahead and volunteer to help you with your obviously much needed intervention… send me the pictured items and then you’ll no longer have to deal with those nasty temptations. Just think about it, you’ll have less clutter in your office plus you’ll not have to fret over the need for any cerakoting either. I’m just one human being volunteering to help out another fellow human being who needs help!” — PikesPG
Kevin Muramatsu’s black rifle book, the Gun Digest Guide to Customizing Your AR-15, is a great resource for fans of AR-platform rifles. All the AR options you can imagine are covered: suppressors, premium barrels, adjustable stocks, free-float handguards, ergonomic grips, buffer systems, tactical lights and much more. Those planning an AR rifle build will find application-specific suggestions for 3-Gun, Service Rifle, High Power (Space Gun), Hunting, and Self-Defense use.
Firearms expert Muramatsu offers advice on choosing the right stock/barrel/optics configuration for your particular game. He also discusses the wide variety of options for slings, grips, magazines and other accessories. With over 520 photos, the book includes a large photo gallery of customized ARs, and includes bonus coverage of the FAL and other “tactical” firearms. The Gun Digest Guide to Customizing Your AR-15 is available from Amazon.com for $20.13, and a Kindle eBook version is offered for $14.99. The book is also sold by Barnes & Noble, and most other major booksellers.
Democratic Presidential candidate Beto (Robert) O’Rourke famously declared “Hell Yes” he is coming to take your guns, starting with AR-15s. In response to that threat, Palmetto State Armory is producing the limited edition PSA “No Beto” AR-15 Stripped Lower Receiver. This precision-made forged aluminum lower can be pre-ordered for just $49.99. On this AR-15 lower, the Fire Selector reads “Hell Yes” (Safe), “Hell No” (Fire), “Snake Bite” (Full-Auto).
All net proceeds from the sale of this receiver will be donated to the nonprofit South Carolina Second Amendment Defense Fund. NOTE: This is a Pre-Order item. Due to unprecedented demand related to the recent political events, please expect lowers to start shipping within 8-9 weeks of order placement.
Palmetto State Armory’s limited-edition “No Beto” AR-15 lower will only be available once and is a limited edition offering. The “No Beto” AR-15 lower is one of the industry’s finest forged, MIL-SPEC lowers. These quality, MILSPEC-designed forged lowers are made with 7075-T6 Aluminum. The Palmetto State Armory “No Beto” AR-15 Lower will accommodate all AR-15 platform builds and is marked “NOBETO-15 MULTI”. The finish is MIL-A-8625, Type III, Class 2 black.
3-Gun competitors must be wicked fast (and accurate) with rifle, pistol, and shotgun.
What’s the most exciting, physically challenging shooting sport? An argument can be made that three-gun shooting (also called “multi-gun”) tops the list. To succeed in the 3-Gun world, competitors must be fast and accurate with rifle, pistol, and shotgun. They must exhibit blazing speed in the short-range stages plus serious accuracy during long-range stages.
America’s top 3-Gun shooters held to Florida next month. The 2019 3-Gun Nation (3GN) Nationals take place October 12-13 at Southern Tactical Range in Holt, Florida. There will be plenty of fast action, plus some long-range accuracy stages. Watch the video below for a preview of the event:
If you’d like to try your hand at 3-Gun shooting, you can still register for the 3GN Nationals, by visiting 3GunNation.com. This match will feature a minimum of 8 stages of fire over a 2-Day Format. Southern Tactical Range offers a mixture of natural terrain and bay stages, featuring a long range area with targets up to 1000 yards.
Blast from the Past — 3-Gun Nation Championship Shoot-Off 2013
In this video 2019 3GN Champion Dan Horner wins a dramatic shoot-off at 2013 3GN Nationals. Horner, after leaving the USAMU, now shoots for Team SIG Sauer.
Hardware for 3-Gun Competition — Guns & Gear
In this NSSF video, Top Shot Finalist Chris Cerino reviews the hardware you’ll need for multi-gun matches. Chris talks about carbine configurations — including barrel, handguard, and optics options. Cerino also demonstrates pistol techniques and explains the key features of a belt/holster rig.
In case you didn’t think your mag-fed, semi-automatic rifle was being targeted for confiscation, think again. It’s not just bump stocks the anti-gun forces want. Given their druthers, the gun-control forces would seize and destroy all ARs, also known as “modern sporting rifles”. These would be banned in the USA, just as they have been banned in Australia and the United Kingdom…
The emphatic call for semi-auto rifle confiscation was made by former U.S. Congressman Beto (né Robert Francis) O’Rourke. At the latest Democratic Presidential candidates debate, Beto roared: “Hell yes, we’re going to take your AR-15, your AK-47, we’re not going to allow it to be used … anymore!”
The National Shooting Sports Foundation commented: “The Democratic Presidential debate in Houston [addressed] firearms. Former U.S. Congressman Robert ‘Beto’ O’Rourke doubled down on his pledge to confiscate modern sporting rifles, of which nearly all candidates agreed to in previous debates. ‘Hell yes, we are going to take your AR-15, your AK-47, we’re not going to allow it to be used against our fellow Americans anymore!’ O’Rourke said the [El Paso TX shooter] was ‘inspired to kill by our “President’, in his opening statement, and again blamed President Trump … in his closing statement[.] U.S. Sen. Kamala Harris (D-Calif.) joined the chorus shifting the blame of a murderer to President Trump saying, ‘[Trump] didn’t pull the trigger but he certainly has been tweeting out the ammunition’.”
The positions of Democratic Party candidates on gun control have become more extreme in recent months. Beto now wants to confiscate all ARs. But just last year, in 2018, Beto stated that AR owners should be allowed to keep them — as reported by Breitbart.com:
During an April 2018 interview on The Chad Hasty Show, Beto O’Rourke claimed people who own AR-15s ought to be able to keep them. Fox News quoted an exchange between O’Rourke and Hasty that began with the host saying, “I own an AR-15. A lot of our listeners out there own AR-15s. Why should they not have one?”
“To be clear, they should have them,” O’Rourke responded. “If you purchased that AR15, if you own it, keep it.”
After Confiscating ARs, What’s Next on the List?
O’Rourke has completely reversed his position, and now advocates mandatory confiscation of mag-fed semi-auto rifles. So, if ARs and semi-auto rifles are now on the chopping block (or should we say “confiscation list”), what’s next? Should semi-auto shotguns be banned? What about semi-auto pistols? This really is a slippery slope, and at some point the fundamental freedoms guaranteed by the Second Amendment will be lost.
AR-Platform Rifles are Widely Used in Marksmanship Competitions
AR-platform rifles are used in High Power and Service Rifle competitions around the country, such as the historic President’s 100 Match at Camp Perry (photo above). Semi-auto ARs are also used for 3-Gun matches, varmint hunting, and self-defense. Beto O’Rourke wants them banned and confiscated.
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 Geissele. 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.
Multiple AR Triggers, including the Elftmann and Geissele, Are Reviewed in this Video
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.”
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.”
Timney Drop-In Trigger Module
This trigger module is available for both the AR15 and the AR10 platform (see 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.
5. Gas Block: You want a gas block that does not impose pointed stress on the barrel. Clamp-on types that grab all the way around the barrel are excellent. The blocks that are pinned on with tapered pins that wedge against the barrel or the slip on type of block with set screws that push up from underneath (or directly on the barrel) can deform the bore inside of the barrel and can wreck the accuracy of an otherwise great barrel.
Trigger images from 
