Backup Tactical Flag Thread Protector 1/2x28 For 9mm & 22LR Pistol .75 in Diameter. . Established by using some of the very most strong and long lasting materials available these Muzzle Devices through Backup Tactical provides you with a product that gives you a great deal of reliability. Backup Tactical has been making high quality products for a very long time and the Backup Tactical Flag Thread Protector is their very own approach to showing you how much they care. At OpticsPlanet we make it our obligation to get the best solution for all of your specifications and featuring the Backup Tactical Flag Thread Protector is something that we're pleased to offer. Specifications for Backup Tactical Flag Thread Protector: Manufacturer: Backup Tactical Color: American Flag Threads per Inch: 1/2x28 Fabric/Material: Aluminum Alloy Caliber: .22 Long Rifle 9mm Luger Package Contents: Backup Tactical Flag Thread Protector