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Gunsmithing Difference between F/A and S/A BCG?

supernt

Sergeant
Full Member
Minuteman
Jan 1, 2008
169
0
VA & SoCal
Like the title says, I would like to know the difference between M-16 and AR-15 bolt carrier groups?

Also, what would you guys recommend for a high quality BCG?!

I also noticed that Young's Manufacturing offers a "lightened" BCG.
What are the advantages to this?

Thanks!
 
Re: Difference between F/A and S/A BCG?

If you run a lighter BCG lock time is reduced, some say a M16 carrier and\or a carrier wieght increases lock time which should make the weapon more accurite.