Riflespeed model RS7524 is the Riflespeed .750 adjustable gas block 2.4-inch assembly, a hand-adjustable gas control for AR-15 and AR-10 rifles that use a .750-inch gas block journal. This is one of Riflespeed’s Limited Exposure models, with grasping grooves that wrap around the front of the control knob so it stays easy to adjust even when the knob sits mostly underneath the handguard. A numbered control knob clicks into each setting, so you can turn the gas up or down and return to a known setting later for light commercial ammunition, higher-pressure milspec loads, suppressed shooting or hot and cold weather. It needs a straight gas tube, Riflespeed’s or another maker’s, and the tube is sold separately.

Key Specifications

• The gas block journal diameter is .750 inch, so it fits barrels with a journal of that size.
• The assembly length is 2.4 inches, the dimension to check against your handguard and muzzle device.
• The control knob has grasping grooves wrapped around the front, which make it easier to turn when it sits mostly under the handguard.
• Adjustment is tool-free through a numbered control knob that clicks at each setting, so a setting is easy to read and repeat.
• It requires a straight gas tube, which is sold separately, so plan the tube length for your gas system.

Frequently Asked Questions

Do I need tools to adjust it? No. You turn the numbered control knob by hand, and each setting clicks into place so you can return to it later.

What gas tube does it need? A straight gas tube from Riflespeed or another maker. Riflespeed states that gas controls require straight gas tubes and that the tubes are not included.

Buy the Riflespeed Adjustable Gas Block, .750-Inch Journal, 2.4-Inch Assembly

Dial the gas to the ammunition and setup you actually shoot, then return to that setting whenever conditions change. We ship from our Lubbock, Texas gun shop with fast, insured delivery, and there are more AR-15 accessories and parts to look through.