COVID-19 Impact Notice: Retail Store Closed until April 20. Click for details.
Current order processing time frame: 3 business days

Sir/Ma'am,I received this kit and installed the barrel and bolt. I then found a black, tapered ring in the bottom of the box. What is it for? I do not see it anywhere in the manual.v/rScott

Scott Benson

Referenced item: CALX-MCX-9B-300-TAP

That tapered ring sounds like the adapter for a non-tapered (non-Sig) suppressor or muzzle device.

Rate the answer?