Originally Posted by greenriver
I know what an upper is but what's dissipator upper?
its a 16" barrel using a rifle length gas system. it was the early first attemmpt at fixing the carbine length issues on a 16" barrel. it got swamped by the midlength gas systems which works better than carbine or rifle on 16" barrels.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
Last edited by JonM; 01-09-2013 at 01:22 AM.