The bravo company low profile gas block in the .750 size is engineered for shooters seeking a durable, reliable gas block for their AR-15 platform. Machined from high-quality steel and finished with a corrosion-resistant phosphate coating, this block is designed to fit barrels with a .750-inch gas journal, commonly found on government or medium-profile barrels. It is a rock-solid, low-profile foundation for the most common barrel diameter on the platform.
What the bravo company low profile gas block is and who it is for
Made by Bravo Company, this .750 block is for builders running government or medium-profile barrels, which is the most widespread journal size on AR-15 rifles. A low-profile gas block sits below the rail line so it fits cleanly under a free-float handguard, keeping the barrel slim and the build uncluttered.
The bravo company low profile gas block is manufactured to tight mil-spec tolerances, with the internal diameter honed after finishing to ensure a precise fit, adhering to USGI Technical Data Package standards. That accuracy keeps your gas system timing consistent round after round.
Key features of the .750 gas block
- Compatible with .750-inch barrel gas journals found on government and medium-profile barrels.
- Constructed from durable steel with a corrosion-resistant phosphate finish.
- Manufactured to tight mil-spec tolerances for reliable, repeatable gas flow.
- Internal diameter honed after finishing per the USGI Technical Data Package.
- Secured with two steel 10-32 by 3/16 knurled cup point set screws for a stable installation.
Specs and construction
This gas block is machined from high-quality steel and finished with a phosphate coating for corrosion resistance in the intense heat right at the gas port. Steel holds its dimensions through repeated heat cycling, which is exactly what a gas block needs to keep delivering consistent gas to the action.
The internal diameter is honed after finishing to USGI Technical Data Package standards for an exact fit onto the .750-inch journal. It is secured to the barrel with two steel 10-32 by 3/16 knurled cup point set screws, providing a secure and stable installation. A roll pin is not included with this block.
Practical use, care, and compatibility
Confirm your barrel uses a .750-inch gas journal before ordering, since this is the standard government-profile diameter but not universal. Installation is simple: slide the block onto the journal, align it precisely over the gas port, and torque the two set screws. Many builders add thread locker and dimple the barrel under the set screws for extra retention.
Maintenance is minimal: periodically check the set screws and keep the gas port area free of heavy carbon buildup. Tucked under the handguard, it needs little attention once your gas system is dialed. To match it with a fresh bolt carrier group or charging handle, browse our full parts and upgrades catalog. For a precise, dependable low-profile setup on a government-profile barrel, the bravo company low profile gas block is a trusted pick.
Since .750 is the standard government-profile journal, this block is the natural choice for the largest share of AR-15 barrels on the market, which makes it a safe default for most builds. The honed internal diameter and tight mil-spec tolerances ensure it seats precisely and delivers consistent gas to the action.
With a set-screw retention system and no included roll pin, dimpling the barrel and using thread locker is a smart step for lasting retention under heat and recoil. Once your gas system is timed and the block is locked down, it disappears under the handguard and needs little more than an occasional set-screw check to keep running for the life of the rifle.
Precise, phosphate-finished, and sized for the most common barrels, the .750 low-profile gas block keeps your action fed. Ships direct to your door, no FFL required.






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