CMMG .308 Lower Parts Kit MK3

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All the parts you need to get started on you next Mk3 build. Combine this kit with a buttstock kit to complete your lower group. Compatible with CMMG Mk3 Lowers and most LR308 type lowers.

The CMMG Lower Parts Kit includes everything you need for your next lower receiver project.  All premium parts meet or exceed military specifications and 100% made in the USA.

Color Coded Parts List

White Bag

  • .308 Takedown Pin
  • .308 Receiver Pivot Pin
  • Takedown Pin Detent (2)
  • Takedown Pin Detent Spring (2)

Yellow Bag

  • Bolt Catch
  • Bolt Catch Plunger
  • Bolt Catch Screw
  • Bolt Catch Spring
  • Buffer Retainer
  • Buffer Retainer Spring

Red Bag

  • Hammer & Trigger Pin (2)
  • Hammer Spring
  • Trigger Spring
  • Disconnect
  • Disconnect Spring

Blue Bag

  • Magazine Catch
  • Magazine Catch Spring
  • Magazine Release Button

Green Bag

  • Safety Selector
  • Selector Detent
  • Selector Detent Spring
  • Lock Washer
  • Pistol Grip Screw

Hammer, Trigger, Pistol Grip

Fits Most .308-Capable Lowers

Made in the USA

Installation Video




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