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AR-15: ‘Ready When You Need It’ Tips, Tricks and Techniques

cleaning an AR-15

Image source: The Arms Guide

When it comes to semi-automatic rifles, the AR-15 has become one of the most popular and recognizable rifles.

Perhaps it’s because of its no-nonsense black profile. Perhaps it’s because of its customizability. Perhaps it’s simply because it’s an easy-to-use, highly accurate rifle. All of these factor into the great appeal of the AR-15 rifle for so many, but they also contribute to a common problem with the rifle. AR-15 rifles jam. There is little more frustrating (and potentially dangerous) than taking out a rifle and having it jam again and again.

How can you increase your rifle’s reliability? The short answer is to keep it clean, exceptionally clean. Read on and I’ll explain some tricks of the trade I learned from a United States Army officer, a veteran who carried the military version of the AR-15 in the dust and grime of combat zones in Afghanistan.

No Dust, No Dirt, No Debris

Due to the intricacy and preciseness of the AR-15’s action, any dust, dirt or debris will throw off the smoothness of the mechanism, resulting in jams. While the gas blowback is enough to throw the bolt back after a shot is fired, the force at which the bolt moves forward again with the next round is significantly less. As a result, any kind of debris, however miniscule, can hinder it from moving forward freely. Take the rifle’s action apart and wipe it down with a rag. Cotton swabs can come in handy here as well. Take the bolt carrier group out of the upper receiver and clean the upper receiver. Dissemble the bolt carrier group and wipe it down. The rifle functions off of how smoothly and consistently the bolt carrier group moves through the upper receiver, so any changes and increases in friction by sand or dust can quickly lead to jams.

No Carbon Buildup

Carbon buildup in the action of the AR-15 can cause jams. While some carbon can build up in your rifle’s barrel and this should be cleaned occasionally, the action is where significant carbon buildup can accumulate and cause problems. The bolt carrier, the bolt, and the so-called “star chamber” (the area between the locking lugs and the rear of the chamber) are the areas you most want to focus on clearing of carbon residue.

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Use a solvent, like CLP (which stands for, “Clean, Lubricate, Protect”), the military’s cleaner of choice, Hoppes #9, or any gun cleaner. Any organic solvent, even gasoline, kerosene and diesel fuel, can tackle carbon build-up. Use a knife to scrape the carbon off of the bolt and extractor surfaces. Dental picks or a specialized gun pick set can be quite useful in scraping carbon off hard-to-reach areas, like the star chamber. The end goal is to achieve seamless, smooth movement by all the moving pieces of your rifle’s action. Cut down on any friction by removing the carbon, and the gun will work smoothly and won’t jam.

Do Not Mix Ammo Types

While at first glance, a steel cased .223 round and a brass cased .223 round seem to have few differences, the two types of ammo can cause problems when fired one right after the other. Steel casings are covered with polymer. The polymer melts and sticks to the inside of the action. Steel casings don’t seem to have any problems cycling through with this. However, when brass is fired after steel, the polymer sticks to the brass casings and causes jams. A simple way to avoid this is to clean between using different types of ammunition.

Another thing to keep in mind with using different ammo types is that steel casings do not expand in the chamber as readily as brass ones do.  This leads to carbon build-up in the chamber when firing steel-cased ammo. While steel-cased ammo is not as sensitive to this and seems to cycle fine, firing brass ammo without cleaning the chamber will cause jams. In fact, you can even end up tearing the base off of the brass casings. If this happens and the body of the casing gets stuck without its base in your rifle’s chamber, you’ll need a broken shell extractor in order to get it out. Even with the proper tools, a broken casing base can be quite challenging to remove. There’s also the danger that the brass case won’t yield, but instead your extractor will break.

Do Not Run The Rifle Dry (for extended shooting periods)

If you’re going to be doing any intense or extended shooting (100 or more rounds) with your AR-15, you’ll need to “run it wet.” What that means is that you’ll need to have some kind of lubricant, like CLP. Before you start shooting, spray some of the lubricant into the action onto the bolt, and work the bolt back and forth to thoroughly coat it. Then let your rifle sit for a few minutes. If the AR-15 is run dry for long, it will start to seize up; a little lubricant will go a long way.

Is The Magazine Causing Jams?

Most jamming issues with the AR-15 are related to the rifle not being clean enough, but occasionally the rifle magazines are to blame. If you’ve cleaned your rifle extremely well and you’re still experiencing jams, check your magazine. Manually cycle some bullets through the action to see how they are feeding from the magazine. If you have a second magazine or can borrow a magazine from a friend, try it to see if the jamming issue goes away. On some GI-spec, 30-round magazines, the magazine body just ahead of the bullet’s tip may need a little sanding to smooth it out. If that still does not alleviate the problem with that particular magazine, look on the bright side, magazines are relatively inexpensive, so you can always purchase another one to replace a faulty one.

Pistons? A Solution?

The piston AR-15 has been touted as the solution to jams. After all, without all that gas blowing back into the action, won’t carbon build-up be less of a problem? The short answer is yes, piston rifles do tend to have less jams overall and you can get a few hundred more rounds through it before you have cleaning issues, but the results are not exponentially improved. The AR-15 will never achieve the reliability of the AK-47. The reason? The AR15 has lots of pieces with tight tolerances. It is a very precise, very accurate rifle (something the AK-47 is not). The fine-tuning and the exactness of the pieces have made it into a highly accurate rifle. However, because of this, there is no room for dirt or debris in the rifle. This continues to affect both piston and gas tube AR-15s alike. The key here is not necessarily to purchase a more expensive and heavier piston AR-15, but rather to treat your rifle like the highly specific machine it is.

Final Thoughts

The tools are not as important as the care taken in keeping your AR-15 clean and functioning. A rag, toothpick, some cotton swabs, a knife and some kind of cleaner/lubricant are all you need. Add to your gun cleaning collection as you find what works best for you and your rifle.

Focus on the jamming hot-spots. The trigger group, the rifle’s exterior and the muzzle flash hider do not generally cause or contribute to jams. They may help aesthetically, but their cleanliness has little to do with the firing and cycling functionality of the rifle. Keep the star chamber, the bolt carrier group, the bolt, and the inside of the upper receiver exceptionally clean and you’re AR-15 rifle will work smoothly.

As a soldier in Afghanistan, Colin Cash would take out his rifle and fire nearly 400 rounds during target practice without a single jam. Daily, his rifle was buffeted by dust and dirt kicked up by whirling helicopter blades. The fine grains got into every crevice of his M16A4 rifle. The key to his success was simply the attention he gave to keeping his rifle exceedingly clean, knowing its hot-spots, and running it wet during range time. When interviewed, Colin Cash said the soldiers routinely cleaned their rifles. The AR-15 is an amazing rifle, accurate and customizable. Perhaps that is why it found a home with the United States military as well as among hunters, marksman and civilian gun aficionados. If you give your rifle some extra attention when it comes to cleaning it, its jamming issues will become a thing of the past.

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  1. The AR-15 is a fine rifle, no doubt. And i know you feel a “But” coming on, and you’d be right. I will view this through the lens of a SHTF situation…..

    If it all goes to hell out there, for the average person, the AR-15 is simply too finicky for most folks. Under controlled conditions, it is an excellent rifle. It fires a fast, accurate bullet. But under extreme conditions, one may not have the luxury of taking time out to clean the rifle, or give it the mandatory pampering it demands. And the fact that it is indeed finicky with ammo is a definite minus under extreme conditions. One may have to fire, and mix and match whatever ammo they can lay their hands on. That’s the reality of a SHTF situation. The fact that it requires wet-fire in multiple shot scenarios is also a big minus. if you lose your lube, you could be in big trouble. Hey, things happen…… Also, too many small, tiny parts associated with it. If you’re having to strip it to clean it out in the woods or in the field somewhere, all those tiny parts can get lost in the grass in a real hurry.
    Not knocking the gun, or renewing the old AR vs AK debate, but in hairy situations, what the prudent gun owner on the moves wants is LESS factors to proper operation of a firearm, NOT more, or something you need to pamper and sweet talk. Reliability and predictability becomes everything. I would advocate the AK-47 for SHTF. Easy to operate and clean, damn near indestructable, will fire when internally wet or gritty, not even remotely finicky with ammo, heavy enough to club with if need be, and the firearm is so bone-down easy to operate, you can TEACH the gun to novices in a very short time, and get them up to speed. The AK was designed to take the dumbest famboy in Russia, drop him off at the recruitment depot, and have him proficient with ALL aspects of the rifle, IN 4 HOURS OF CONCENTRATED TRAINING. If you need to get a non-gun person up to speed with a firearm, a neighbor or a relative perhaps, and have him USEFUL in a short period of time, the AK is the way to go. Insurgencies and militaries around the world continue to make, import and use the AK-47 for a REASON. They do not import or use AR-15’s, and it AIN’T pricepoint. Again ,not knocking AR-15’s. But still too quirky for most under extreme conditions, especially novices. Consider, most firefights will occur within 100 to 150 yards. The miniscule difference of a millimeter or 2 of accuracy at that range will NOT make a salient difference. Consider the bigger, harder-hitting AK round as compensation for that discrepancy.

    • Through first hand experience, I agree with your assesment of the rifles in your comment.

    • I disagreewithmost of this. I tough my 7 year old girl how to function my AR in about 5 minutes and took about a half hour for safety. It’s a myth that all these third world use AK’s because they are so superior and they are easy for the inexperienced to learn. those third world countriesuse the AK because they can’t afford M16’s. I mean if the M16 was such a finicky weapon why are our soldiers and police armed with AK’s ? as I write this I’m looking at my AR. this gun has een riding in my truck ehind the seat for about 8 years loaded. it has been given the Krylon touch a few times, this last time the paint job was wrecked because I put the upper on a full auto lower and shot it until it cought on fire. it shill shoots fine and is plenty accurate back on its stock lower. I won’t call an AK a p.o.s, because it’s not. for what it is its a good gun, but it is not indistructable. some guns the trunion will back out and it’s done. and if it’s mishandled shooting full auto the AK will burn up like anything else. for e the AR is the best SHTF gun. it has never failed me, even after it spent 3 days on the bottom of the old and lost river when our boat flipped. we slappeda mag in and did a dump not a hitch. SA e thing after Hurricane Ike. it sat for 4 months neglected, nicked it up and dropped a 100 pound hog. as for the using the guns as a club thing every one brings up, you swein an AK like a bat and hit a person or object I’ll be surprised if it shoots. same with the AR. I have yet to find anyone who will take their AK or AR and bash something with it. whatever, the point is, AR or AK, which eversion you like, know it inside and out and shoot a ton. I try to shoot a minimum of 100 rounds a month. both will serve you well.

  2. Capt. Steven Thompson

    We are talking SHTF, non military applications, with a view towards user friendliness, and in the long run–availability of AMMO!

    The 7.62 is a NATO round and a good choice and the AK-47 design, knockoffs included are virtually indestructible, easy to clean and maintain, don’t tend to jam or cause a problem.
    I also agree most firefights–including the SHTF scenarios, are probably under 100 FEET, many within 10-15′ and on the outside maybe 100 yards. AK handles all that.

    You need long range? Go with a $ 350 Mossberg 1OOATR chambered in 7.62/.308 with a $250 Nikon scope will take a reasonable shooter out to 600 yards, a good shooter 800-1,000.

    Close quarters, consider 9mm, also a NATO round. In both a pistol and a small carbine, one cal. is nice and 9mm is available in plenty of ammo FMJ, HP and +p loads. With the additional 300FPS a carbine will get out of a 9mm, you are in the 400-550 pound range of muzzle torque and that will take down the biggest guy you will ever run into. Cheap guns to buy, cheap ammo–HI-POINT is a good manufacturer to look at .

    AR’s or any mods to Full Auto–you better have good shop skills or plan throwing rocks. JMHO.
    Capt out.

  3. tried my brannew wwi 15 out of the box with remanufactured ammo; jam, jam, misfeed, misfire. took it home, lubed it w/ silicon lube( feed ramps, especially), and lubed the mags. not one misfeed or misfire in the next 60 rd.

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