CMMG Endeavor Mk4 Rifle 5.56

The CMMG Endeavor Mk4 Rifle chambered in 5.56x45mm is built on the Mk4 AR-15 platform for shooters who prioritize extended-range accuracy and adaptability. Suited for range work and hunting applications, the Endeavor Mk4 pairs a longer barrel profile with modular accessories to support a variety of setups.

Constructed with an 18-inch nitride-finished 416 stainless steel barrel, the rifle emphasizes ballistic consistency and corrosion resistance while remaining compatible with common AR-15 components. Ergonomics are provided by a Magpul MOE rifle stock, and the EML 15 handguard offers comprehensive attachment options through M-LOK slots and Picatinny rail sections.

Key Specifications

• The caliber is 5.56x45mm.
• The barrel length is 18 inches.
• The barrel material and finish are 416 stainless steel with a nitride finish.
• The magazine capacity is 30 rounds.
• The barrel threading is 1/2x28.
• The handguard model is EML 15.
• The stock is a Magpul MOE rifle stock.
• The muzzle device included is a ZEROED muzzle brake.
• The platform is CMMG Mk4 (AR-15 pattern).
• The exterior color is Coyote Tan.

The CMMG Endeavor Mk4 Rifle 5.56 delivers a versatile AR-15 platform optimized for longer-range shooting and modular customization. Buy the CMMG Endeavor Mk4 Rifle 5.56 online today for a reliable 5.56 platform with accessory-ready ergonomics and components.