Crafted with precision from forged 7075 T6 aluminum, the CMMG Mk4 AR-15 stripped lower receiver is the mil-spec quality foundation for your next build. Its Armor Black finish, achieved through Cerakote, ensures durability and a sleek look. Compatible with any mil-spec lower parts kit, this lower receiver allows for versatile assembly and customization. Built for the .223 Remington and 5.56 NATO calibers, it promises reliable performance for serious shooters.
- Manufacturer: CMMG
- Model: Mk4
- Caliber: .223 Remington / 5.56 NATO
- Finish: Cerakote
- Action: Semi-automatic
- Type: Stripped Lower Receiver
- Subcategory: Lower Receivers
- MPN: 55CA102-AB
