Originally Posted by
Wolverine6G
What's the difference between M16 and AR15
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Short answer : M16 BCG has more material (to engage the sear on a select fire rifle) and a shrouded firing pin (helps protect the firing pin).
AR-15 S/A BCG's might have a shrouded firing pin. Most/all AR-15 BCG's will be hollowed out (lighter).
Some people swear there is less recoil with the M16 F/A BCG's... I dunno.
I run M16 F/A BCG's because they are a known entity and if they can handle F/A fire... they should be able to handle my piddly round counts.
Tons of posts on this on many different forums but the below has pictures.
https://www.m4carbine.net/showthread.php?t=14534
Colt builds War Horses, not show ponies. - C4IGrant
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