YANKEE HILL MACHINE .22/5.56 1/2x28 Std Barrel .720 OD Rifle Thread Protector (YHM-3411-B)

.223 Caliber/5.56 NATOMade from Steel1/2x28 Thread PitchBull Barrel Profile.920 Outside DiameterPlatedMatte BlackWeight: 1.28 oz.

.223 Caliber/5.56 NATOMade from Steel1/2x28 Thread PitchPencil Barrel Profile.635 Outside DiameterPlatedMatte BlackWeight: 0.32 oz.

.30 Caliber/.308 WinchesterMade from Steel5/8x24 Thread PitchBull Barrel Profile.920 Outside DiameterPlatedMatte BlackWeight: 0.992 oz.

Constructed from high quality steel.30 Caliber/.308 Winchester DiameterStandard Barrel Profile5/8"x24 Thread Pitch.720 Outside DiameterPlated Black Finish

1/2x28 Thread Pitch9mm Diameter.570 Outside DiameterPlated This steel thread protector will prevent damage to the threads of your pistol barrel when a muzzle device is not installed.