Protects threads when not using muzzle brakes, flash hiders or suppressors. Features quality steel construction and premium black-oxide finish.
GTHM-242 1/2 - 20 .625 Fit to Barrel (Some .22's)
GTHM-243 1/2-28 x .920" Outside Diameter 10/22 Bull Barrel
GTHM-244 1/2-28 x .625" Outside Diameter for Aftermarket 9mm Barrels
GTHM-245 1/2-28 x .705" Outside Diameter Most AR Barrels
GTHM-246 1/2-28 x .625" Outside Diameter Pencil Barrels
GTHM-247 5/8-24 x .750" Outside Diameter AR-10, .300AAC Blackout
GTHM-248 Metric 14 x 1
GTHM-249 Metric 14 x 1,5
GTHM-250 Metric 15 x 1
GTHM-251 Metric 17 x 1