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Runs like a champ - FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer

by Jackal, from TX, United States Written on May 30, 2021
Review for FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer
FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer
FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer
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Jackal's Review of FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer

I have one of these in my AR-15. I used a BCM extractor upgrade kit, and a milspec hammer spring (not sure if nessessary), but my AR-15 eats steel like it was brass. I shoot brass and Wolf steel loads with no problems/ ftf. These things are solid. They are also very easy to clean. Keep in mind that nickel does have a tendency to stain after a while. Diamond metal polish will remove the staining, but i dont think its worth it personally. It still maintains the same lubricity and function, stained or not.
Would Recommend: Yes
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About Jackal from TX, United States

I love building ANYTHING, from chemical research, compter engineering, electrical engineering, all forms of audio, and even microcode. Does it cost more to custom build? For the most part yes, but that is what makes it yours. You know every part, its strengths and hopefully no weaknesses. Its alot like car work. I hamdle ALL maintenance on mine as well as my wifes vehicle. When someone else does it its not the same. They normally dont check every little detail like I do, since it is MINE. Ive seen too many almost catistrophic yet tiny mistakes made service departments. I believe this to be true of prebuilt ARs as well. If someone all day builds the same gun over and over again, eventually something may be overlooked. Besides they are building a gun for anyone. Not just for you. I enjoy having to show my friends how to use my gun vs their prebuilt AR.

Last updated 2025-11-12 UTC.