Locking Thread Protector Knurled Blued 1/2-28 .500" Length

Is your thread protector working loose while shooting, and you keep losing it? This one is designed so it stays put! This thread protector "grips" or "locks" on the barrel/adapter threads automatically using a design based upon the resiliency of the steel its made out of, in conjunction with an o-ring...nothing to release and either end of the thread protector can be used. Made in the USA!