This is a great low cost, low profile gas block from Sadlak Industries is designed to fit inside most multi-rail forearms and over barrels with a .750" diameter. This carbon steel alloy gas block is lightweight at 1.4 ounces and features a manganese phosphate finish. The two included USA holo-krome point set screws feature a special knurl point that prevents loosening.
Don't forget to pick up the new gas block aligner. Makes proper positioning and installation of gas block a breeze.
Price is $27.99.