Battle Born Grease
Material: Chrome Moly Vanadium steel
Thumb Stud Ball Bearing Opening
62X39 111GR MONOFLEX SBR 20RD
Compatible with Stern Defense's 9mm upper receivers
LUTH GUNSMITH PARTS KIT Boresights Battle Born GreaseLuth AR, Gunsmith Kit, For AR 15, Includes Buffer Retainer (10), Buffer Retainer Spring (10), Bolt Catch Spring (5), Bolt Catch Buffer (5), Bolt Catch Roll Pin (5), Detent Spring (20), Takedown Detent (20), Front Pivot Pin (5), Disconnector (5), Trigger Spring (5), Pistol Grip Screw (3), Pistol Grip Screw Washer (3), Selector Ejector Spring (10), Selector Detent (10), Hammer Trigger Pin (10), Rear Takedown Pin (5), Disconnector Spring (5), Hammer