Battle Arms Development Enhanced Pin Set(BAD-EPS) is designed to fit AR-15 style rifles. The set consists of the Enhanced Takedown Pin(BAD-ETP) and the Enhanced Pivot Pin(BAD-EPP) as well as 2 nickel plated stainless steel pin springs, and 2 KNS hardened stainless steel detents. Precision Swiss CNC machined from from grade 5 Titanium bars and are lthen coated in a Black PVD Diamond Like Coating these pins are the finest you will find.

Features and Specifications:
Fits AR-15/M4/M16 style rifles with Mil-spec .250" diameter pin holes
Low Drag pin heads that are still easy to grip
Ambidextrous safety compatible
Cone shaped recess to reduce the risk of damage to the receiver
Black PVD IONBOND DLC

Notes:
AX556 owners please note that the EPP (Enhanced Pivot Pin) is incompatible with the AX556 receiver due to the receiver's proprietary design. The ETP (Enhanced Take-down Pin) will work as designed.
Depending on your M16 receiver, may not be compatible with the KNS anti-walk sear pin without modification to the KNS anti-walk sear pin.