Breek Arms Low Profile .750

Low Profile Set Screw style Gas Blocks for the AR-15 or AR-10 are machined with high quality steel and coated with nitride. The low profile gas block design allows you to mount it underneath any free float hand-guard slim or regular sized. It is not milled out so there is a solid uniform surface that will not collect dust and dirt. Standard barrel diameter is 0.750, but there are several other sizes that will work with other barrel diameters.