The BRDE PRO gas block drilling jig MOS is used to drill Micro MOA 0.750" bore gas blocks for pinning.
Cold rolled carbon steel
Waterjet and CNC machined opening
Manganese Phosphate finish
#31 drill hole, hardened insert on one side
Includes 1/4"-28tpi x 3/8" soft point set screw
Includes one #31 jobber drill bit and one 1/8" hex key
Please email me for PDF instructions.