Super confused - SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in

I purchased this for the stock 3.9 inch barrel on a P320 AXG Scorpion and immediately contacted the order desk to change to the 8900444 barrel. This was based on some of the confusing answers to questions and what I found on the Sig site. The Sig site list this barrel as 4.3 inches. Anyway, they could not cancel and had to let it arrive. Installed and it looks and feels right. I plan to test it today and don't anticipate any issues YMMV. I can't really dock or give stars as it is not Opticsplanets fault all the data is confusing but the barrel itself feels like Sig quality.

*Update-I am out of luck. The barrel fits but will not allow a piston to travel enough to operate the slide properly. *The 445 barrel is for an XCompact (NO LCI). THe 444 is for the XCarry (NO LCI).