CMMG 28B3D0CCG Endeavor 22 20" Rifle

The CMMG 28B3D0CCG Endeavor 22 20" rifle is a precision rimfire platform engineered for shooters who demand accuracy, reliability, and low recoil in a lightweight package. Purpose-built for recreational shooting, small-game hunting, and tactical rimfire training, this rifle excels where cost-effective practice and consistent performance matter most. The 20-inch barrel strikes an optimal balance between velocity and maneuverability, making it suitable for both bench work and field deployment in confined spaces.

Built on CMMG's proven Endeavor platform, this rimfire rifle delivers sub-MOA accuracy potential when paired with quality ammunition and proper shooting technique. The modern ergonomic design incorporates a picatinny rail system for optic and accessory mounting, allowing shooters to customize the rifle for specific mission profiles. At 5.5 pounds fully assembled, the rifle remains highly portable without sacrificing structural rigidity or sight-in stability, critical factors for both civilian marksmanship and training applications where ammunition cost and shooting volume are practical concerns.

Law enforcement trainers and civilian shooters benefit from this platform's low recoil impulse, which facilitates rapid shot placement and extended training sessions without fatigue. The 20-inch configuration supports standard .22 Long Rifle ammunition, offering compatible suppressor mounting options for hearing-safe training environments. Whether used for fundamental marksmanship development, competitive rimfire events, or cost-effective skill maintenance, the CMMG Endeavor 22 delivers the accuracy and reliability expected from a manufacturer with deep roots in professional-grade firearms design.