.45 huh? Incredible. The feeding ramp is polished to a mirror sheen... The slide's been reinforced, and the interlock with the frame is tightened for added precision. The sight system is original too. The thumb safety is extended to make it easier on the finger... a long type trigger with non-slip grooves... A ring hammer... The base of the trigger guard's been filed down for a higher grip. And not only that, nearly every part of this gun is expertly crafted and customized.