This is a factory replacement threaded barrel for the SIG Sauer P320. It is chambered in 9mm and threaded for use with suppressors or other muzzle devices. The barrel is made of high quality carbon steel and heat treated for hardness and durability, then chrome lined and phosphate finished. A knurled thread protector is provided for when the suppressor or other muzzle device is not in use.

This is 5.5" long and threaded with a 1/2x28 TPI