Though there are other adjustable gas blocks on the market, only the ODIN Works AR-15 Adjustable Low Profile Gas Block gives you an incredible amount of versatility with an unprecedented number of stops, giving users 20 different points to truly fine-tune gas flow. Each ODIN Works adjustable gas block is machined from carbon steel and treated with a black-nitride finish. The front-facing adjustment screw is made from Inconel, which allows it to withstand the high temperatures encountered during rapid firing. No set screws are needed to adjust this block, and options are available to fit .750, .875 and .936 gas-block journals.

Does not fit pistol length gas systems