I was wondering what you think of the gun and what comp you have on it? If so where did you get it from? As a designer and toolmaker I'm thinking of writing a program and doing a protype for myself. One that will work well with minor PF by design and one for major PF . My old shooting bud in reno owns KKM barrels so the comp testing will be on is barrels. 7075 alum and maybe Titanium .... As there is no barrel bushing... A tapered cone fit would be great but the slide may not have enuff meat due to recoil assy hole. It could be done but it would end up a dedicated top end. Soo what do you thik of the gun it self??? And yes it does need an Apex trigger. Thanks for your thoughts.