Noveske, Infidel, 13.7" Barrel, 223 Remington/556NATO, 1:7 Twist, Mid Length Gas System, Stainless, Fits AR-15, Includes Pinned Gas Block and Gas Tube
1:7" Twist Improved Polygonal Rifling
Extended Feed Ramps
Bead Blasted Finish
Mid Length Gas System (Comes With Tube), Pinned Low Profile Gas block, Medium Contour