CMMG 38CA332 Mk3 .308 Lower Receiver Group M4 Stock



The CMMG MK3 7.62mm (.308) lower receiver w/ collapsible stock and a fully installed parts kit from the factory is a complete “drop in” lower ready to match to your upper.

Compatible with DPMS .308 upper receivers and magazines.

Note: Uses LR308 takedown/pivot pins, magazine catch, bolt catch, and .155″ hammer/trigger pin holes.


  • Mfg #:38CA332
  • Model#: MK 3
  • Type: LR308 Pattern
  • Caliber: 308 Winchester/7.62 NATO
  • Material: Billet 6061-T6 Aluminum
  • Finish: Type III Hard Anodized
  • Trigger: Single Stage Mil-Spec Trigger
  • Grip: A2 Pistol Grip
  • Selector: Standard AR-15 Safety Selecto
  • Butt Stock: M4 Style Buttstock
  • Receiver Extension: 6 Position Mil-Spec Dia.
  • Buffer System: .308 Carbine Spring and .308 Carbine Buffer



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