All the parts you need to get started on your Mk3 build in convenient color-coded packets to simplify assembly. Compatible with CMMG(R) Mk3 and most LR-308 type lowers.

Features :

• Bolt catch, Bolt catch screw-in pin, Bolt catch plunger, Bolt catch spring
• Trigger, Trigger spring
• Disconnector, Disconnector spring
• Hammer, Hammer spring
• Trigger/hammer retaining pins
• Ambi-Safety, detent, spring, and screw
• Magazine catch, spring, & release button
• Pivot/takedown pins, detents, & springs
• A2-style pistol grip/grip screw & washer