Want a muzzle device that does it all? Now, thanks to the Sons of Liberty Gunworks NOX, you don't have to choose between muzzle control or flash suppression. This dedicated AR-15 add-on does both, and it acts as a keymount for your Dead Air Sandman suppressor. Each SOLGW NOX 5.56 NATO muzzle device was designed meticulously over a six-month period to ensure that its construction provided complete flash suppression while also preventing muzzle rise. The unit has gas ports at the 12- and 3-o'clock position and are designed to mount on any 1/2"-28 TPI muzzle threads.