CMMG 55A66E1 55A66E1

CMMG MK4 S 5.56MM 18
The Mk4 S is the perfect rifle for the tree stand or target range. The Mk4 S utilizes an 18? 416 stainless steel medium taper barrel chambered in 5.56x45mm NATO and CMMG’s RKM14 KeyMod hand guard. The rifle’s KeyMod hand guard is ready to accept any number of the sling mounts bi-pods and other KeyMod compatible accessories making the ultimate in versatility and modularity. Each rifle includes a magazine and CMMG’s lifetime quality guarantee. - Caliber: 5.56mm - Barrel: 18 1:7 twist medium taper 416SS bead blasted finish - Muzzle: A2 comp. threaded 1/2-28 - Hand Guard: CMMG RKM14 KeyMod hand guard - Furniture: A2 pistol grip M4 butt stock with 6-pos mil-spec receiver extension - Receivers: Forged 7075-T6 AL M4 type upper AR15 type lower - Trigger: Single stage mil-spec style trigger - Weight: 6.7 lbs (unloaded) - Length: 34 (stock collapsed) - Gas Port Location: Rifle - The Mk4 S is the perfect rifle for the tree stand or target range.