CMMG ENDEAVOR MK4 .22 ARC 20 Stainless Rifle

The CMMG Endeavor MK4 .22 ARC 20 Stainless Rifle represents a precision platform purpose-built for shooters who demand accuracy, reliability, and versatility in a modern sporting rifle. Chambered in the efficient .22 ARC cartridge, this rifle bridges the gap between high-velocity rifle performance and manageable recoil, making it ideal for target shooters, competitive marksmen, and those seeking a dedicated training platform with real-world ballistic consistency. At 7.8 lbs with a 20-inch stainless barrel, the rifle delivers the balance of maneuverability and velocity that professional shooters value for both range work and field applications.

Built on CMMG's proven Endeavor MK4 platform, this rifle features a stainless steel barrel construction that resists corrosion and sustains accuracy through extended shooting sessions—critical for law enforcement training or military qualification courses where environmental exposure and sustained fire are realities. The .22 ARC cartridge, though specialty ammunition, delivers superior ballistic coefficient and wind deflection resistance compared to traditional .22 centerfire options, enabling consistent long-range hits without excessive wind hold-off. The rifle's 20-inch barrel length optimizes muzzle velocity and provides the sight radius necessary for precision optic mounting, while the modular design accommodates standard tactical accessories and rail systems for mounting lights, lasers, or magnified optics.

This platform benefits shooters and training officers who need cost-effective practice ammunition paired with rifle-grade ballistics and reliability—especially those transitioning shooters or running high-round-count training events where budget constraints meet accuracy demands. The rifle's lightweight profile and manageable recoil make it suitable for shooter development programs, while its stainless construction ensures durability in humid or corrosive environments common to range operations. Compatibility with standard AR-pattern furniture and optic mounts means experienced operators can adapt this rifle to existing tactical setups without additional platform-specific parts.