Aero pins for aero m5 - Aero Precision M5 .308 Takedown Pin

There is no mil-spec for AR 10 receivers. Not only are there two different patterns, there are difference between the same patterns. Aero makes a very nice lower that accepts the widest range of DPMS pattern uppers. However the pivot and takedown pins are a slightly smaller diameter other pins. Also be aware a standard mag catch is too short. Either get a deeper release button (Aero) it a long take down catch (Sig 716)