Manufactured to the highest quality standards the GB750-S is designed to fit .750 diameter gas pad barrels and uses a 2 set screw design to securely retain the block in position. Comes complete with, #10-32 X .125'' set screws and gas tube roll pin.
Places the gas port hole at the correct .295'' position from the shoulder.
4140 Gun Barrel Steel.
Black Phosphate Finish, Type M.
Ultra Low Profile.
Dia: 0.750'' ID.
Made in the USA.
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