Superlative Arms Solid Adjustable Gas Block .750-inch Black

Built by Superlative Arms (brand part no. SABO-DI-750SM), the Superlative Arms Solid Adjustable Gas Block .750-inch Black is an adjustable AR-15 gas block machined to fit a .750-inch barrel journal. It mounts with set screws directly onto the barrel’s gas-block journal in the traditional solid, screw-on gas-block style.

Key Specifications

• It is sized for a .750-inch barrel gas-block journal, so it only fits AR-15 barrels machined to that exact outside diameter.
• It mounts with set screws directly onto the barrel’s gas-block journal in the traditional solid gas-block style.
• It is machined from steel.
• It has a black finish.
• The gas port is fully adjustable, letting the shooter dial in exactly how much gas is diverted to cycle the bolt carrier group.
• Superlative Arms builds this block around its bleed-off gas system, which vents excess gas downstream rather than restricting flow at the block, the same approach the brand uses across its adjustable gas block line for suppressor and full-auto-rated reliability.

Frequently Asked Questions

Will this fit any .750-inch AR-15 barrel? It is machined for a barrel gas-block journal that measures exactly .750 inches in diameter, so it will not fit barrels machined to a different journal size.

Why choose an adjustable gas block over a fixed one? An adjustable gas block lets you dial back excess gas, which is especially useful when running a suppressor or switching between supersonic and subsonic ammunition, both of which change how much gas the system needs to cycle reliably.

How is this gas block secured to the barrel? It uses set screws that bear directly on the barrel’s gas-block journal, the traditional solid gas-block mounting method.

Buy the Superlative Arms Solid Adjustable Gas Block .750-inch Black

Pick up the Superlative Arms Solid Adjustable Gas Block .750-inch Black in our Rifle Parts lineup at Schaefer Defense; we ship every order fast and fully insured from our Lubbock, TX gun shop.