The RESOLUTE 300 5.7x28mm upper receiver has a 16.1-inch barrel and features CMMG’s patented Radial Delayed Blowback operating system. The receiver and handguard are hard coat anodized, and come with a pre-installed CMMG ZEROED Ambi Charging Handle, CMMG SV Brake, and a CMMG RML15 M-LOK handguard. This package ships with three 10-round 5.7 AR Conversion magazines.
All of our Upper Groups come complete with BCG.
All CMMG products come with our Lifetime Quality Guarantee.
TECHNICAL SPECIFICATIONS
PLATFORM | MK57 |
CALIBER | 5.7X28MM, 5.7X28MM (CONVERSION) |
OPERATING SYSTEM | RADIAL DELAYED BLOWBACK |
BARREL LENGTH | 16.1 |
BARREL TWIST | 1:9 |
BARREL CONTOUR | MT |
BARREL MATERIAL | 4140CM, SBN |
BARREL TWIST | 1:9 |
MUZZLE DEVICE | COMPENSATOR SV BRAKE |
MUZZLE THREAD | 1/2 X 28 |
GAS PORT LOCATION | N/A |
GAS BLOCK | N/A |
UPPER RECEIVER | FORGED 7075-T6 AL M4 TYPE UPPER |
HAND GUARD | CMMG RML15 M-LOK |
FINISH | HARD COAT ANODIZED RECEIVERS AND HAND GUARD (CAN BE UPGRADED TO CERAKOTE) |
CHARGING HANDLE | CMMG ZEROED AMBI CHARGING HANDLE AR15 |
MAGAZINE | CMMG 10RD X3 – SAME SIZE AS 25RD CMMG MAG |
WEIGHT | 4.6 |
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