CMMG's MK3 lower receivers are machined from 6061-T6 Billet Aluminum and hard coat anodized black. This receiver features an integrated, oversized trigger guard, and upper receiver tensioning screw.

Specifications and Features:
Billet machined 6061-T6 aircraft aluminum alloy
Integrated oversize trigger guard
Black anodized finish
Caliber marking: 7.62mm
Uses LR308 Take down and pivot pins, magazine and bolt catch, and .155" Trigger and hammer pins

Click here to learn how to complete your AR-15 lower receiver.