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Lower Group for Mk57 5.7x28mm Radial Delayed Blowback system. Includes RipStock, ZEROED Drop-In Trigger, ZEROED Pistol Grip, Ambi Safety, and Bolt Catch. Mk57 Lowers are designed for use with CMMG 5.7x28mm Radial Delayed Blowback uppers only. Available in Cerakote finishes.
Included components:
- Lower Receiver Mk57 Forged 7075 T6 Aluminum
- RipStock
- ZEROED Drop-In Trigger
- ZEROED Pistol Grip
- ZEROED 60/90 Ambi Safety
- ZEROED AR15 Bolt Catch
Specifications
- Manufacturer:
- Cmmg
- Category:
- Lower Receiver
- Weight:
- 38.4 oz (2.40 lbs)
- Length:
- 14.9"
- Required Component:
- Yes
- Complete Firearm:
- No
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