Hawkins Precision thread protectors are precision machined in our shop in Colorado Springs, CO. They come in a multitude of sizes to fit your needs and feature a melonite coating. This adds durability and creates lowered friction on muzzle threads, which resists galling.
The .930 fits the Proof Research Sendero 24" and longer
The .960 fits the Proof Research Sendero 22" and 20"