Sig Sauer OEM Full Size P320 9mm Threaded Barrel, 5.5in., CIP, LCI, 1/2 x 28, Black Nitron Finish (8900566)

Chambered in 9mm, this threaded barrel is meant to fit with P320 full-size models. Barrels can be replaced easily and conveniently by simply ensuring the firearm is unloaded, removing the slide from the receiver and grip module, and sliding out the existing barrel.

Includes thread protector cap.
1/2 x 28 thread pitch