Make sure you measure your barrel - SilencerCo Threaded Barrel - Sig Sauer

Full size Sig Saur p320 is 5-1/4 inches or 13.335 inches from end to end.(thread protector off) The Sig Saur Xcarry or Sub-comp P320 is 4-1/4 inches 10.795cm. Just so you guys know! I would really love that the company put out more descriptions on the barrel. It just help out customers that dont know much about the gun. Because they didnt buy the gun new. Maybe a Pawnshop, Gunshow etc and all you have is the name of the gun and no other description. For an example myself hahah! Not your fault, mainly mine! Had a little bit of a gun fever! Hahaha