Noveske Thread Protector 1/2x28 Features The Noveske Thread Protector threads onto a 1/2x28 muzzle the standard thread pitch found on the vast majority of 5.56 NATO and .223 Rem AR-15 barrels. When a rifle is run without a suppressor or muzzle device exposed threads are vulnerable to dirt moisture and physical damage that can make mounting a device later more difficult. This thread protector covers and seals those threads keeping them clean and ready for a suppressor or brake to be installed at any time. Its fit is designed around common AR barrel profiles so it threads on cleanly without interfering with the barrel s crown or contour. Finished in black the thread protector matches the typical finish found on most AR-15 barrels keeping the muzzle looking factory clean rather than bare or exposed. Because it is inexpensive and simple to install it is a practical addition for any AR-15 owner who occasionally runs their rifle without a muzzle device attached. Protecting the threads also helps preserve the thread engagement needed for a proper secure fit when a suppressor or brake is eventually installed. For AR-15 owners who want to keep their muzzle threads protected and ready the Noveske Thread Protector is available for sale at GrabAGun. Noveske Thread Protector 1/2x28 Specifications Manufacturer: Noveske Model: Thread Protector 1/2x28 Type: Thread Protector Color: Black Thread Pattern: 1/2x28 Compatible Hosts: 5.56 NATO/.223 Rem AR Barrels Available At: GrabAGun