1/2 – 28 Bull Barrel Thread protector. It is machined from US made steel to very high quality standards on CNC lathes in my shop. It is counter bored to accommodate barrels that are not undercut at the shoulder. With a durable black oxide finish. These are designed to fit great on the Ruger 10/22 with bull barrel for a very smooth invisible look. Machined with care for a great fit and finish.
Length is .440″
Outside diameter is .925.
This thread protector works on most Ruger 10/22 with bull barrels and variants.
100% Made in the USA!