The CMMG Mk4 stripped lower receiver is machined from forged 7075-T6 aluminum and finished in Armor Black Cerakote. It is a mil-spec AR-15 lower that accepts any mil-spec lower parts kit and pairs with mil-spec AR-15 upper receivers, making it a base for a custom build. CMMG backs it with a lifetime quality guarantee against defects in material and workmanship.
- Manufacturer Part # : 55CA102-AB
- Type : Stripped Lower Receiver
- Platform : AR-15
- Caliber : 223 Remington / 5.56 NATO
- Material : Forged 7075-T6 Aluminum
- Finish : Cerakote
- Color : Armor Black
- Compatibility : Mil-Spec Lower Parts Kits and Upper Receivers
- Weight : 0.7 lb
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