Upgrade or replace the barrel on your SP2022 with this original SIG SAUER part. Loaded chamber indicator. The threaded barrel is chambered in 9mm and allows you to attach a suppressor or other muzzle device. A knurled thread cap protects the end when no device is attached. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability. Thread pitch: 13.5x1 LH TPI