Douglas 5.56MM Barrel 16″ – 1-7 Twist – FDE

Description

16.5″ Douglas Barrels are constructed of 416 stainless steel with a 1:7  twist. Barrel has a FDE finish. Barrel has a 1/2 x 28 threaded end for brake or comp. install. Barrel is profiled for the Mark 12 Mod H and will accept the AE brake and collar.  The gas block is .750 Diameter.