YHM's sRx protective cap will keep the threads on your sRx mounts from becoming dirty or damaged when your suppressor is not in use.

• Weight: 0.448 Oz.
• Length: .5625"
• Diameter: 1"
• Material: 4140 chrome moly steel
• Finish: black oxide
• Designed to be used with the YHM sRx System & any suppressor with 1 3/8" thread.