I am trying to explain to coworkers the benefits of using a FA bolt carrier in a semi auto carbine. It looks like these are the same reasons for using a heavier buffer as well. Correct me if I am wrong:
1) The increased weight slows down the cycling, which in turn aids the extraction process;
2) The slower cycling rate also helps keep the weapon more steady when firing, aiding in quicker/more accurate followup shots;
3) More weight when the carrier is moving forward (increased inertia) helps ensure that the bolt locks fully into position (i.e. if you had a weak cartridge, weak buffer spring or excessively filthy chamber area).
What are the advantages of the FA carrier's shrouded firing pin?
Thanks for your input!
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