Faxon Firearms Adjustable Low Profile Gas Block Features The Faxon Firearms Adjustable Low Profile Gas Block solves one of the most common problems with aftermarket adjustable gas blocks: carbon fouling around the adjustment screw that causes the block to seize over time. Faxon s patent pending design places the adjustment screw so it never contacts gas port carbon directly keeping the mechanism smooth and reliable for adjustments made months or even years after installation. The block offers 14 tactile detented settings between fully open and fully closed letting shooters fine-tune gas flow for their exact combination of barrel length ammunition pressure and buffer weight. This level of adjustability is particularly valuable for suppressed shooters who often need to reduce gas flow to compensate for the added back pressure a suppressor introduces. Machined with a .750 inch inner diameter to match a standard gas journal the block mounts using three set screws for a secure fit that resists loosening under the vibration of repeated firing. Its low profile footprint fits beneath most modern free float handguards without requiring a larger diameter rail system. Adjustments are made easily with a 3/32 inch Allen key or a flathead screwdriver so no specialized tools are needed to retune the rifle. Finished in matte black and weighing just 0.07 lbs the Faxon Firearms Adjustable Low Profile Gas Block is a precision tuning upgrade for AR-15 builders available for sale at GrabAGun. Faxon Firearms Adjustable Low Profile Gas Block Specifications Manufacturer: Faxon Firearms Model: Adjustable Gas Block Type: Gas Block Color: Black Finish: Matte Material: Steel Compatible Hosts: AR-15 Diameter: .750 Adjustment: 14-Position Tactile Mounting: 3 Set Screws Width: 1 Weight: 0.07 lbs Available At: GrabAGun