The BRDE PRO gas block drilling jig D is used to drill, Troy, Aero Precision, Ballistic Advantage, Radical Firearms, 5 Seven, CMMG and SLR non adjustable 0.750" bore gas blocks for pinning.
Dimensions of opening:
OAH - 1.360", OD at Barrel 0.915, OD at gas tube hole 0.375, Bottom 0.325" wide
Specs:
Cold rolled carbon steel
Waterjet and hand fit opening
Manganese Phosphate finish
#31 drill hole
Includes 1/4"-28tpi x 3/8" soft point set screw
Includes one #31 jobber drill bit and 1/8" hex key