AR22 M4 Barrel

Description

This .22 long rifle M4 contour barrel is 16″ long, threaded the standard 1/2 x 28 tpi and has a right hand 1 X 16″ twist, the correct twist rate for .22LR. The barrels have a manganese phosphate finished IAW 5.3.1.2 of Mil-STD-171, the U. S. government’s recommended protective finish for steel.  Included is a AR22 barrel collar