SPIKE'S LPK STANDARD 556 BLK

Spike's Tactical, Lower Receiver Parts Kit Standard, 223 Rem/556NATO, Rounded Hammerand Hammer Spring, Trigger and Trigger Spring, Disconnector and Disconnector Spring, Safety Selector, Detent, Spring, Bolt Catch, Roll Pin, Plunger, Magazine Catch, Trigger Guard, A2 Pistol Grip. Black Finish