These pins are the STRONGEST that can be produced and were designed to withstand the high impact of full and semi-automatic 9mm and .223 suppressed weapons. An absolute must-have for all AR15 and M16 owners. Special anti-creep retainers prevent wear on your irreplaceable M16 receiver. They will also protect your AR15 from wear. Pin installation tool & 2 Allen wrenches included.
· Mil Spec Stainless Steel with Black Oxide retainers.
· No modification to gun required.
· Made in the U.SA.