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Stripped Lower | Mk57 | Left Side | 5.7x28mm | Armor Black
CMMG Product #57CA2CB-AB

Lower Receiver Assembly, Mk57

PRODUCT #57CA2CB

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$274.95
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Lifetime Quality Guarantee

Backorder Lead Time
Due to high demand, some of our parts and accessories may be on backorder and have an extended lead time. Items currently on backorder can still be purchased. Expected to ship in 12 to 14 weeks.

WARNING: Cancer and Reproductive Harm | https://www.p65warnings.ca.gov/

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Commonly Purchased with Lower Receiver Assembly, Mk57

Lower Receiver Assembly, Mk57

For those times you want to build your AR lower group exactly to your spec, the Mk57 Lower Receiver Assembly is here to fit the bill. Designed to accept AR15 accessories like trigger groups, safeties, and grips; this lower receiver pairs with our 5.7x28mm Radial Delayed Blowback upper groups and allows for maximum compatibility between your Mk57 build and other firearms that utilize FN®* Five-seveN®* pattern magazines.

 

Lifetime Quality Guarantee

We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.

**Mk57 Lowers are designed for use with CMMG 5.7x28mm Radial Delayed Blowback uppers only**

 

Specifications

Platform Mk57
Caliber 5.7x28mm
Lower Receiver Mk57 Forged 7075 T6 Aluminum
Finish Cerakote
Trigger Guard Integrated

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