This precision machined low profile gas block from Odin Works is
designed to insure proper functioning of the AR-15 gas system. It is
made of carbon steel and has a corrosion and scratch resistant nitride
finish. The internal diameter is 0.0705" to 0.0751". The cross pin and
set screws are included. The gas block compatible with all ODIN free
Features and Specifications:
Inside diameter 0.0705" to 0.0751"
Includes cross pin and set screws