
▲ 6 r/AR9
Anybody knows the breechface depth on AR9s, people say .128" or .135" which one is correct? Thanks.
u/Friendly-Garlic-2885 — 3 days ago

Hi folks, I've decided to copy an FF RAS Carabine and I need the thread dimensions on the rail. Does anyone know?
Hi folks, I'm still working on cloning the URX2/3.1 and I need the thread size of the jamming nut. I think it's around 1-3/8 inches, but if anyone knows the exact thread size, could they please tell me? Thanks.