November 3, 2021. Let’s face facts, AR-platform rifles are more dirty than bolt-action rifles. The AR-15 works by piping gas back into the bolt carrier. This causes the bolt to unlock and the bolt to move backward. The barrel’s “exhaust gas” contains soot, and carbon. The carbon will build up on the bolt. The carbon can also combine with the lube on a bolt carrier to form a nasty, paste-like substance. This can cause problems if the black paste clogs the extractor recess and ejector. Over the years, this Editor has examined dozens of ARs. Apart from mag-related malfunctions and oily gunk in extractor and ejector regions, the most common cause for AR cycling problems was found to be mag-related malfunctions. These areas are often overlooked by AR owners. If you look at an AR that has not been properly cleaned, you will see black gunk and small brass shavings in the extractor and ejector recesses. You must ensure that your black rifle runs smoothly and reliably by cleaning it regularly and following the proper maintenance procedures. These videos will show you how to properly disassemble and clean AR platform rifles. They also cover the essential lubrication that ARs require to function reliably. Jerry Miculek, an ace shooter, takes down and cleans a AR-platform rifle that Lena owns. This video is great because Lena’s rifle had been “run hard and packed up dirt” so you can see the carbon and grease buildup. This video, which lasts 35 minutes, is extremely thorough. Jerry is a top-ranked action carbine shooter in the country, so pay attention to his tips on cleaning and lubrication. General AR-15 Maintenance and Lubrication There is a variety of opinions on AR lubrication. Some men like to run “wet” with lots CLP, while others prefer to lubricate the key areas that are most susceptible to friction and wear, such the contact point for a bolt carrier. We recommend that you check the ejector recess as well as the extractor spring recess regularly to avoid any malfunctions. This video is from Pew Pew Tactical and it’s a 7-minute guide on cleaning and lubricating AR platform rifles. This video explains important details for both upper and lower. This video provides very specific advice about the bolt carrier group which receives dirty gas directly from barrel. Make sure to inspect the recesses of the extractors and ejectors. This is where old lube and brass shavings can build up, as well as carbon. Follow the instructions in this video to lubricate. Don’t over-lubricate bolt carriers as that will only trap more carbon.
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