The 100 Series Pistols and SBRs feature the beloved A2 pistol grip, a CMMG M4 with 6-position receiver extension buttstock, and a CMMG single-stage mil-spec style trigger.
The Mk57 platform accepts FN FiveSeven-style 5.7×28 magazines, and features a unique magazine release.
All Products come with CMMG’s Lifetime Quality Guarantee.
TECHNICAL SPECIFICATIONS
| PLATFORM | MK57 |
| CALIBER | 5.7X28MM, 5.7X28MM (FN) |
| LOWER RECEIVER | FORGED 7075 T6 ALUMINUM |
| FINISH | HARD COAT ANODIZED RECEIVER (CAN BE UPGRADED TO CERAKOTE) |
| PISTOL GRIP | CMMG A2 |
| RECEIVER EXTENSION | CMMG PISTOL EXTENSION |
| TRIGGER TYPE | MIL-SPEC SINGLE STAGE |
| TRIGGER GUARD | INTEGRATED |
| SAFETY SELECTOR | CMMG MIL-SPEC |
| WEIGHT | 1.12 |
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