HK Thread Protector Cap .45 ACP for Mark 23 - 16x1 RH

The HK Thread Protector Cap .45 ACP for Mark 23 - 16x1 RH is an essential accessory and protects your threaded barrel when a muzzle device is not in use. The knurled design makes installation and removal easier than ever, while steel construction and a corrosion-resistant finish ensure lasting durability and reliability in the field or at your favorite range. 16x1 RH threads. Made in USA.