Luth-AR GB-LP750 Low Profile Gas Block .223 Rem/5.56mm AR-15 Black

The Luth-AR GB-LP750 is a low-profile gas block purpose-built for AR-15 platforms chambered in .223 Remington and 5.56mm. Machined from steel and finished in a durable black manganese phosphate coating, this .750" diameter gas block drops onto any standard .750" gas block journal and locks down with two set screws and one roll pin for a secure, repeatable mount on the barrel.

The low-profile geometry keeps the overall height to just 1.414", giving the block a slim, snag-free profile that sits low against the barrel. At its compact size, the GB-LP750 is a straightforward replacement for a worn factory gas block or a clean upgrade component for a new AR-15 build using any standard gas tube and barrel combination chambered in .223/5.56. The set-screw and roll-pin mounting installs without permanent modification to the barrel journal.

Designed and manufactured in the USA, the GB-LP750 is built to Luth-AR's factory-spec tolerances as a direct replacement for the standard AR-15 gas block. The manganese phosphate finish provides long-lasting corrosion resistance in the field, and the simplified mounting method makes installation accessible for any experienced AR-15 builder or gunsmith.