Lower Parts Kit, Mk3

All the parts you need to get started on your Mk3 build in convenient color-coded packets to simplify assembly. Compatible with CMMG Mk3 and most LR-308 type lowers. Check out our LPK Install resource article for an interactive assembly video and in-depth breakdown. Combine this kit with a Buttstock or Brace kit to complete your lower group. All CMMG products come with our Lifetime Quality Guarantee.

Kit Includes:

• 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
• Safety, detent, & spring
• Magazine catch, spring, & release button
• Pivot/takedown pins, detents, & springs
• A2-style pistol grip/grip screw & washer
• Buffer retainer/spring

Not all 308 lowers are the same. Our kit is designed to work with our lowers and are “Mil-Spec”. We would recommend checking with the manufacturer of your lower for compatibility of parts if you are not using our receiver