LOWER GROUP, PISTOL, BANSHEE, PISTOL TUBE, Mk57, Mil-Spec Trigger
Designed to feed any of our 5.7x28mm upper groups, the BANSHEE™ Mk57™ pistol lower group is feature packed and built with unmatched attention to detail. Whether you have a collection of FN®* Five-seveN®* style magazines already or like the notion of being able to share mags between handgun and personal defense weapon, the Mk57 pistol lower can make it happen. Available in seven different Cerakote finishes, the Mk57 lower comes outfitted with a variety of meticulously crafted CMMG parts and accessories, including:
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 |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | Carbine |
| Receiver Extension | Pistol Tube |
| Trigger Type | Mil-Spec Single Stage |
| Trigger Guard | Integrated |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Weight | 2.1 lbs |
| Length | 14.7" |