1/2 X 28 (.223 Rifles & AR-15)
Thread Protectors 1/2 X 28 Rifle -.223 Rifles And AR-15. When you don’t have something threaded to your barrel, what is the best way to protect your threaded barrel? Backup Tactical has a line of custom thread protectors available in a number of threads, designs, colors, and patterns. Find the thread protector that matches your .223 rifle, AR-15, or your personality at The Country Shed.