Excerpt CMMG 55AC758-GBRESOLUTE 300 MK455616 BLK

CMMG Resolute 300 MK4 556 Nato Graphite Black 16" Barrel 55AC758-GB

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$1,499.00 $1,189.00


Resolute 300 Rifle, Mk4, 5.56mm

If you want the best an AR has to offer, then the 300 Series is your choice. This AR is fitted with every desired feature including a choice of 10 Premier Cerakote colors, laser engraved model name on the lower receiver, updated ambidextrous controls and sling points along with a premium trigger, Magpul grip, PRS stock, CMMG's revolutionary RIPSTOCK or RIPBRACE, and CMMG's SV muzzle brake. These are just a few of the possible upgrades on this series. Chambered in 5.56mm, this AR is ready for the range.

The Mk4 platform accepts standard AR15-style magazines, and is the most versatile of the CMMG platforms, especially with the .22 LR, 5.7x28mm (Conversion), and 9mm conversions.

CMMG’s RESOLUTE rifle and carbine lineup is engineered with purpose for those who refuse to compromise on quality. Each RESOLUTE rifle is designed for balance, accuracy and maneuverability. Available in three tiers —RESOLUTE 100, RESOLUTE 200 and RESOLUTE 300 — that cater to your intended needs and customization. Whether you’re defending your family or looking to bring out your best at the range, the RESOLUTE keeps going when you need it most.

All Products come with CMMG’s Lifetime Quality Guarantee.


Platform Mk4
Caliber 5.56mm, 5.56x45mm
Barrel Length 16.1
Barrel Twist 1:07
Barrel Contour MT
Barrel Material 4140CM, SBN
Barrel Twist 1:07
Muzzle Device CMMG SV Brake
Muzzle Thread 1/2 X 28
Gas Port Location Mid
Gas Block 0.750 Non-Adjustable
Upper Receiver 7075-T6 AL M4 Upper
Lower Receiver AR15
Hand Guard CMMG RML15 M-LOK
Finish Cerakote Receivers, Handguard, RipStock
Charging Handle CMMG Oversized Ambi
Pistol Grip Magpul MOE
Receiver Extension 6 Postion Enhanced Receiver Extension & Ambi Sling Plate
Stock / Brace CMMG RipStock
Trigger Type Geissele Automatics SSA 2-Stage
Trigger Guard Magpul MOE
Safety Selector CMMG Ambi
Magazine 30rd Magpul PMAG
Weight 6.4
Categories: Semi Auto Rifles
Tags: Home Defense
Condition: New
Manufacturer: CMMG
Model: Resolute 300
SKU: 816422024094
MPN: 55AC758-GB
UPC: 816422024094
Vendor: Gunprime
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