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) compiled a set of particularly extreme AR Kabooms. Compiling the “evidence” from various web sites, ASJ published nine (9) of the most Unbelievable AR-15 Fails (but sadly the photos seem to be unavailable now). Here are two of the worst “AR-15 Fails”.
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
Wouldn’t it be cool if you could adjust the bolt cycling energy on your AR-platform rifle? Turn down the cycling rate for slow fire at the bench or varmint hunting. Crank up the energy for 3-Gun matches and rapid-fire disciplines. This IS possible with a handy accessory that fits on your barrel. 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.”
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 $61.07. Wilson Combat offers two diameters (.750″, .875″) so you can select the right dimensions for your rifle configuration and barrel diameter. The blocks are Chromoly steel with a black Melonited finish.
Package Includes:
Adjustable Gas Block (Melonite Finish)
Adjustment Set Screw (Installed)
Straight Gas Tube (Installed, Gas Tube Pin Installed)
AR owners know that their black rifles require regular cleaning and maintenance. And this modular platform allows many options for stocks, fore-arms, and optics mounting. That ability to customize is one of the AR’s major attractions, but customization requires solid understanding of the AR’s design and components.
GET FREE 40-Page AR-15 Book Sample
Note, if you are interested in the book, there is a substantial 40+ page FREE sample available on the Amazon site. You can see the entirety of the first two chapters from the Kindle digital version. CLICK HERE to visit Amazon.com and then click on the button labeled “Read Sample” below the cover image.
AR Set-Up and Maintenance
If you need to disassemble and maintain your AR rifle, swap barrels or handguards, add optics, or customize the stock, Gun Digest’s AR-15 Setup, Maintenance and Repair book tells you what you need to know. From field-stripping to barrel mounting and trigger installations, the book covers a wide range of topics. The book provides step-by-step instructions for set-up and maintenance, with hundreds of detailed photos. The book also includes AR gunsmithing chapters with reviews of recommended tools.
Author Patrick Sweeney is a certified master gunsmith and armorer instructor for police departments. Sweeney has also authored the notable 4-volume Gunsmithing the AR-15 series (Vol. 1, Vol. 2, Vol. 3, and Vol. 4) and 20+ other titles for Gun Digest Books.
Whether you want to learn about disassembling your AR for regular maintenance, field-stripping, swapping out parts, adding optics or customizing a stock, AR-15 Setup, Maintenance and Repair guides you through everything you need to know to keep your AR-platform rifle running well. There are also tips on how to improve accuracy, and maintain your bolt carrier group properly.
Authored by Patrick Sweeney
Published by Gun Digest Books
ISBN-13: 978-1951115470
320 pages, softcover, 8 ¼ x 10 7/8 inches
Editor’s NOTE: The key to keeping an AR running reliably is proper lubrication (in the RIGHT places), and regular cleaning of the bolt carrier and bolt, including ejector recess and extractor recess. The majority of non-functioning ARs we’ve seen had gunk, lube, carbon, and brass shavings in those recesses.
Other AR Books by Patrick Sweeney
Bonus Video — AR15 Maintenance with Jerry Miculek
In this helpful video, legendary shooting Jerry Miculek explains how he cleans and maintains his AR-platform rifles. Miculek shoots ARs in three-gun competitions.
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 from a few seasons back, 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 who needs help!” — PikesPG
We’ve always liked the capacious, durable range boxes from MTM Case-Gard. And MTM offers a special “Tactical” version for AR shooters. This detachable-lid Tactical Range Box features a magwell-filling “action block insert” to support your AR securely during cleaning. Magwell posts like this have been used for years by AR gunsmiths. It’s a fast and convenient way to secure your AR.
The Tactical Range Box also comes with two adjustable cradles that will support most conventional bolt-action rifles and lever guns. These plastic cradles are gentle on fancy stocks, and they can be removed and stowed in the bottom of the box during transport.
The Tactical Range Box uses a two-piece design. The removable top storage compartment holds oils, solvents, brushes, patches, and small accessories. Unlatch the top box to reveal a large, deep storage area that will hold tools, earmuffs, ammo boxes and other larger items. MTM Range Boxes are big enough to hold pretty much everything you need at the range, except your front rest and rear sandbag. Midsouth Shooters Supply offers the MTM Tactical Range Box (item 008-TRB40) for just $52.23. Like MTM’s standard Shooting Range Box (RBMC-11), the Tactical Range Box is well-built and much less flexy than generic plastic tool-boxes. Check out the features of this range box in the videos below.
Practical USER TIP — Keep some heavy items in the box for more stability. Forum member Tom Alvez explains: “I have one of those range boxes… It’s a great product, really. But, unless there is some pretty heavy stuff in the box when the rifle cleaning starts it may get pretty skittery. Maybe [add] a block or two of lead — that could come in handy later.”
For more info, contact MTM® Molded Products at (937) 890-7461 or visit MTMCase-gard.com.
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.
For many years, the U.S. Army Marksmanship Unit (USAMU) regularly published reloading “how-to” articles on the USAMU Facebook page. In this article, the USAMU’s reloading gurus address a question frequently asked by prospective handloaders: “Should I buy a single-stage press, or a progressive?” The USAMU says the best answer is Solomon-esque in both its wisdom and simplicity: “Get BOTH!” However, there is definitely more to the issue, as the USAMU explains below.
Progressive Press Safety Considerations
by USAMU Staff
Many are the beginning handloaders who have asked a friend about their “setting up” a progressive press for them. The idea is that the newbie could then just feed in components and crank out buckets of practice ammo without needing to really learn much about handloading. Tempting though this might be, that’s simply not how it works. Such an approach might be ok if there were never a malfunction with either press or operator, but that’s unrealistic. Our hypothetical newbie would then lack the knowledge to problem-solve most situations.
Worse yet, several different handloading operations would be occurring at different stations on the progressive press at the same time. It takes an experienced operator to keep track of, and truly understand the significance of, all those potential mini-problems. Loading without this experience is a recipe for potential disaster – such as a double powder charge (especially with pistol cartridges) dropped while the loader was attending to some other function, etc. Progressives are an animal unto themselves, and while they offer many benefits, they do take some getting used to – even by experienced handloaders!
ILLUSTRATIVE HORROR STORY
Here, enter a 40-year veteran handloader who decided to jump onto the progressive bandwagon late in his career, having used only single-stage presses all his life. A High Master NRA High Power Rifle competitor, he had no background in competitive pistol shooting, where historically most progressive presses are found.
Experienced Action Pistol shooters have typically encountered multiple episodes in which shooters “skipped” a powder charge for some reason, leading to a squib round and a bullet possibly lodged in the bore. Thus, at matches, it’s reflexive for them to yell “STOP!” in unison if they see a shooter get a “click” vs. a “bang”, and rack the slide to keep firing. This writer has personally seen several pistols saved in just such scenarios over the years.
Click No Bang — What NOT to Do
Our High Master set up a popular progressive press and began turning out .223 Rem 100-yard practice ammo with abandon. He was using a moly-coated 52gr match bullet and an economical, fast-burning surplus powder that gave great accuracy. Once on the range, he began practicing strings of rapid-fire. All was well, until he heard “Click!” rather than “Boom”.
Lacking the above experience or onlookers to halt him, he reflexively operated the charging handle on his expensive, custom NM AR15 Service Rifle, and the next trigger squeeze reportedly registered on seismographs over at least a three-state radius. He sat, uninjured but bewildered, until the hail of expensive bits and pieces quit raining down around him.
When the smoke cleared, he immediately cursed the horrid, evil, demonically-possessed progressive press for this, his first-ever reloading mishap. His $1400 NM upper was ruined, but thankfully, his $800 pre-ban lower… and he had escaped injury.
This tale is told not to discourage the use of progressive presses, but to emphasize the need to EASILY and IMMEDIATELY KNOW what is happening with the press at each station, every time the handle is cranked. Not to do so is, as they say, “bad ju-ju.”
It illustrates why we at the USAMU Handloading Shop agree in recommending that new handloaders should begin with a single-stage press. Once one thoroughly learns the steps in each phase of handloading by repeated experience, then one will be qualified to move on to a progressive press.
The single-stage press will REMAIN virtually indispensable for one’s entire handloading career, even after having purchased a progressive press (or two). There are endless small projects that are best handled on a single-stage press, and a poll of USAMU’s Handloading staff reveals that not one would willingly be without his single-stage press, despite owning at least one progressive.
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 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, BudsGunShop.com has M&P 15-22 models starting at just $394.49. And these 15-22s qualify for a $50.00 Smith & Wesson Holiday Season Rebate through 12/31/2025. That lowers your net cost to just $344.49! (other 15-22 models can be $50-$100 more).
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, 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. Many vendors offer the HK 416 for under $540.00 and it’s currently on sale for just $449.99 at CDNN Sports. 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.”
Palmetto State Armory (PSA) is running a major Halloween Sale for the next few days. We found some very impressive deals. For example, save $150 on a Savage hunting rifle, save $450 on a PSA AR15, save $240 on a complete AR lower, save $350 on a 1911 pistol, and save $200 on a SIG Sauer optic. And there are big savings on other products such as gun cases, magazines, rifle scopes, triggers and more.
If you compete in service rifle, NRL22, or 3-Gun competitions, we recommend getting a .22 LR AR-style rifle for cross-training and fun matches. With this Rimfire Combo Special you get a good S&W rimfire rifle plus 3 magazines and a nice rifle case.
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 (#ad) for $35.95, and a Kindle eBook version is offered for $14.99. The book is also sold by Barnes & Noble, and most other major booksellers.
This video starts off slow, but it is worth watching if you own any AR-platform rifle. It illustrates 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.
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We’ve always liked the capacious, durable range boxes from 
