CMMG Endeavor .308 Win 20in 20rd

The CMMG Endeavor Mk3 in .308 Winchester is designed for shooters who need extended-range performance from an AR-style platform. This rifle suits range work, precision shooting, and hunting scenarios where .308 Winchester ballistics are required. The Mk3 platform is built on an AR-10/LR-308 high-pattern design to deliver stable, repeatable results.

The rifle features a 20-inch 416 stainless steel barrel with a nitride finish to optimize accuracy and barrel life. The receiver set is billet 7075 T6 aluminum front and rear, and the CMMG EML15 M-LOK handguard provides extensive accessory mounting options while maintaining a balanced feel. Controls include a ZEROED drop-in trigger and CMMG ZEROED ambidextrous charging handle and 60/90-degree safety selector for reliable operation.

Key Specifications

• The caliber is .308 Winchester / 7.62 NATO.
• The action is Semi-Auto.
• The barrel length is 20 inches, offering a balance between accuracy and maneuverability.
• The barrel material is 416 stainless steel (SBN).
• The barrel twist rate is 1:10.
• The muzzle device is a CMMG ZEROED Muzzle Brake.
• The muzzle threads are 5/8 x 24.
• The magazine capacity is 20 rounds (Magpul 20rd PMAG included).
• The handguard is a CMMG EML15 M-LOK.
• The unloaded weight is 8.8 lbs.

The CMMG Endeavor Mk3 blends a purpose-built AR-10 platform with long-range-oriented components to deliver consistent .308 Winchester performance. For buyers seeking an AR-style .308 rifle for range work, hunting, or precision practice, buy the CMMG Endeavor .308 Winchester online today.