CMMG Endeavor MK4 22 ARC 20" Rifle - Midnight Bronze Cerakote

The CMMG Endeavor MK4 chambered in 22 ARC delivers precision performance in a versatile platform built for both hunting and competition applications. This 20-inch barreled rifle combines the ballistic efficiency of the 22 ARC cartridge with CMMG's proven MK4 receiver system and distinctive Midnight Bronze Cerakote finish.

What Makes This Different

The 22 ARC cartridge offers superior ballistic performance compared to traditional .223 Remington, delivering higher ballistic coefficients and improved long-range capabilities. The MK4 platform features CMMG's enhanced bolt carrier group design with improved reliability over standard AR-15 systems. The 20-inch barrel length maximizes the 22 ARC's velocity potential while maintaining maneuverability for field use.

Key Features

• 22 ARC chamber optimized for high-BC bullets and extended range performance
• 20-inch medium contour barrel with 1:7 twist rate for bullet weights up to 88 grains
• MK4 forged 7075-T6 aluminum upper and lower receiver set
• Midnight Bronze Cerakote finish provides corrosion resistance and reduced glare
• Standard AR-15 magazine compatibility with proper 22 ARC magazines
• Mil-spec trigger group and safety selector
• M-LOK compatible handguard for accessory mounting

Field testing demonstrates the 22 ARC's effectiveness on medium game at extended ranges, with the 20-inch barrel delivering velocities exceeding 2,650 fps with 75-grain projectiles. The platform maintains sub-MOA accuracy potential with quality ammunition, making it suitable for precision applications from varmint hunting to competitive shooting. Weather-resistant Cerakote finish withstands harsh field conditions while the proven gas system ensures reliable cycling across various ammunition weights.

Technical Specs

• Caliber: 22 ARC
• Barrel Length: 20 inches
• Overall Length: Approximately 40 inches
• Weight: Approximately 7.5 pounds
• Twist Rate: 1:7 inches
• Finish: Midnight Bronze Cerakote
• Receiver Material: 7075-T6 forged aluminum
• Gas System: Mid-length
• Thread Pitch: 1/2x28 TPI
• Made in USA

CMMG's reputation for quality manufacturing and the 22 ARC's proven ballistic advantages make this rifle a practical choice for shooters seeking extended-range capability in a familiar platform. The Midnight Bronze finish adds durability while maintaining the professional appearance expected from serious shooting applications.