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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. 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**









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CMMG MK3 308 Lower Receiver Parts Kits

Our Price:

CMMG MK3 308 Lower Receiver Parts Kits $74.00
  • MSRP$79.95
  • MPN38CA6DC
  • UPC852005002097

Total in stock: 0

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5004 State Highway 74 Cape Girardeau, MO 63701
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