1/2" x 28 Thread Protector .750 Long .740 Dia. Stainless Splined #3104

.223 / 5.56 1/2 - 28 Threaded barrel protector. It is machined from stainless steel to very high quality standards on CNC lathes in my shop. It is counter bored on both ends to accommodate barrels that are not undercut at the shoulder. Length is .750" Outside diameter is .730 With great looking machined grooves. This thread protector works on most standard AR barrels and variants. 100% Made in the USA! Please confirm size before ordering.