DURAMAG DuraMag SS, Magazine, 9MM, Colt Pattern, 10 Rounds, Fits AR9 Rifles, Stainless, Orange AGF Anti-tilt Follower, Black 1009041178CPD DURAMAG set out to re-design and perfect the Colt pattern 9mm magazines for the AR-15. With the DURAMAG SS you can feel confident that it will feed the widest variety of 9x19 ammunition" even defensive hollow points and heavy sub-sonic loads. 9mm AR-15 magazine have always been notoriously stubborn to load" but loading the last round is just as easy as loading the first round with a DURAMAG SS. Other magazines fail when filling to capacity: DURAMAG will outlast and outperform all others" first round to last.