CMMG MK3 Gun Builder's Lower Parts Kit

CMMG MK3 Gun Builder's Lower Parts KitThe 308 version includes LR308 takedown, pivot pins, and an improved bolt catch. The 308 kits also include a bolt catch screw in place of the AR-15 pin.Includes Takedown pin Receiver pivot pin Takedown pin detent (2) Takedown pin detent spring (2) Hammer and trigger pin (2) Safety selector Selector detent Magazine catch Magazine catch spring Magazine release button Bolt catch Bolt catch plunger Bolt catch spring Bolt catch spring pin Buffer retainer and buffer retainer spring.