The slide and the grip module of my X Maco are Sig Sauer originals. The barrel, however, is a True Precision threaded barrel 4.35 inches in length which replaced the factory 3.7 inch Sig Sauer barrel. I have a Griffin Armament micro compensator on the barrel. It’s a couple of tenths of an inch longer than the thread protector and it a bit under 17mm in diameter ( the lug for screwing it onto the barrel is 16mm). I will forward several photo of the pistol to your sales email for your use.

Pistol is Sig P226 X5 Legion with Gas Pedal