Posted 30 Sep 2020 (edited) Looking for a full auto bcg for the piston Sig 516 for use on a RR lower...call or text me if you have one you can part with - thanks! Steve 603.502.9567 Edited 16 Nov 2020 by StevieP Found - thanks to this board! North Hampton, New Hampshire, United States Share this post Link to post Share on other sites
