Are you sure you wish to do this?
OEM 3.7 XL barrel. $80 shipped. Gen 2 SIG P365XL Slide with X-Ray sights and optic plate included. No internals. $175 SOLDWilson Combat XL Module Grip. $53 shipped. SOLDLow round count. Maybe 400 total. Cleaned and lubed after every firing. bore is in excellent condition.