CMMG Resolute 300 Mk4 5.56x45mm Sniper Grey Semi-Automatic Rifle 55AC758-SG

The CMMG Resolute 300 Mk4 5.56x45mm Sniper Grey Semi-Automatic Rifle 55AC758-SG is a compact and highly maneuverable rifle built on CMMG’s proven MK4 platform. Chambered in the popular 5.56x45mm NATO cartridge and finished in a sleek Sniper Grey, the Resolute 300 delivers excellent performance in a shorter, more agile package ideal for home defense, tactical use, and recreational shooting.

Resolute 300 Series Design

The Resolute 300 is part of CMMG’s Resolute line, featuring a shorter barrel configuration compared to the Resolute 200. This makes it significantly more compact and easier to handle in tight spaces while still maintaining the reliability and accuracy CMMG is known for. The rifle is built with quality components and offers a great balance between size, weight, and firepower.

MK4 Platform Performance

Built on the MK4 receiver set, the Resolute 300 benefits from CMMG’s engineering expertise. The platform provides smooth operation, excellent ergonomics, and broad compatibility with standard AR-15 accessories. The Sniper Grey finish offers a modern, tactical appearance along with good corrosion resistance for various environments.

Key Features

• Brand: CMMG
• Model: Resolute 300 Mk4
• Caliber: 5.56x45mm NATO
• Action: Semi-Automatic
• Color: Sniper Grey
• Model Number: 55AC758-SG
• UPC: 816422024131
• Platform: MK4

Why Choose the CMMG Resolute 300 Mk4?

The CMMG Resolute 300 Mk4 offers a compact and capable 5.56mm rifle in an attractive Sniper Grey finish. Its shorter overall length makes it easier to maneuver in confined spaces compared to standard carbines, while still delivering the performance and reliability expected from CMMG. Whether used for home defense, tactical training, or general range use, the Resolute 300 provides a modern and effective shooting solution.

Experience the compact performance of the CMMG Resolute 300 Mk4 5.56x45mm Rifle in Sniper Grey.