Sig Sauer Barrel, 9MM, 4.3 Threaded Barrel, 1/2X28 Thread Pitch, Fits Sig P365XL/XMacro (Non Comp), Nitride Finish, Black, Loaded Chamber Indicator 8902058 Factory replacement threaded barrel designed and tested thoroughly for the P365 chambered in 9mm with a 3.7" slide assembly. Works on P365-XL and P365-XMACRO (non-comp) slides. Includes a thread protector cap when not in use with a compensator or suppressor.