Attach your muzzle devices or suppressors with this 9MM threaded barrel for the P320 COMPACT / Carry/ XCARRY , chambered in 9MM. 4.6″ long. Designed to function with factory slides that include the loaded chamber indicator. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability. Includes a thread protector. SPECS: Caliber 9MM, 1/2 X 28 RH thread pitch. Compatibility: P320 COMPACT / Carry/ XCARRY W/ Loaded chamber Indicator, or any P320 that is designed to work with a 3.9″ non-threaded barrel.