Quickly convert your AR15 into a hard-hitting 6.5 Grendel by using CMMG’s RESOLUTE 300 Mk4 upper group kit. Each kit comes with a RESOLUTE 300 Mk4 upper group (with 16-inch barrel) and three 10-round 6.5 Grendel magazines. Simply pair the upper receiver with your existing AR15 lower, and use the supplied magazines to safely feed 6.5 Grendel ammunition.
All Products come with CMMG’s Lifetime Quality Guarantee.
TECHNICAL SPECIFICATIONS
PLATFORM | MK4 |
CALIBER | 6.5 GRENDEL |
OPERATING SYSTEM | DIRECT IMPINGEMENT |
BARREL LENGTH | 16.1 |
BARREL TWIST | 1:8 |
BARREL CONTOUR | MT |
BARREL MATERIAL | 416SS, SBN |
BARREL TWIST | 1:8 |
MUZZLE DEVICE | COMPENSATOR SV BRAKE |
MUZZLE THREAD | 5/8 X 24 |
GAS PORT LOCATION | RIFLE |
GAS BLOCK | 0.750″ NON-ADJUSTABLE |
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 | 10RD X3 |
WEIGHT | 4.6 |
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