BCA Service Gas Blowback Pistol Build (Per Unit)Do you dream of a pistol build that offers performance, reliability, and gas efficiency? Maybe you have a G17 or a Hi Capa you want to turn into your main for CQB, but you dont know how to get it there. BBA will build you a pistol using premium parts. Our techs will test, fit, and tune all components so that they work together as intended. We can install both external and internal components ranging from: Slides Outer barrels Frames Triggers Barrel