Sig Sauer P365 9mm with upgraded springs and floor plate as well as a factory 12 round mag with hogue floor plate. I have spent a lot of time and money on this gun and our other. I finally have them reliable and now I don't even want to look at them. I'm keep the osight red dot but including a brand new never been opened Romeo zero elite. If you want me to install, I do have an adjustable torque screwdriver.