5.56 NATO 1:7 12.5″ -MID- (WAR-SERIES)

Description 5.56 NATO 1:7 Twist-Mid Gas- (WAR SERIES) WAR SERIES- Ready for Anything and Everything, When you need it most.   MOS-Tek’s Sub-Moa Guarantee/w Halworx ballistics ammunition.   Match Grade   5R Rifling  CRMOV-STEEL  Medium Profile- 25.3OZ  Dimpled for Gas Block  Finish (Matte) Nitride  5/8×24 Muzzle Thread