Here's the original STI 1911 Duty One 9mm. Then I wanted a 2011. Instead of buying a 2011, I decided to build a lower that I can swap the slide between the two lowers. And then I got this: Undercut trigger guard: EGW BTGS fitting: Fitted BTGS: And the finish gun Cerakoted FDE by Chuck Rogers!!! Wanna kill these ads? We can help!