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Posted: 9/30/2009 2:00:09 PM EDT
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Im in the process of installing one and i just realized i have no idea what it acutally does Would some one enlighten me please |
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The button is attached to a pawl that engages the serrations in the right side of the bolt carrier. Each time you hit it, it pushes the bolt forward a little bit (if it's not already locked). Gene Stoner said it was unnecessary. Army Ordnance (which didn't like the M16 anyway) insisted on it, since both the M14 and M1 had a way to force the bolt closed. IIRC USAF preferred the M16 as it was (without the FA) and the USMC didn't care.
It's discussed in The Black Rifle and there have been a bunch of threads on it. |
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