I am not aware of a kit for the Colt but then I don't really see a need for one.Ejkoechling, I dont know if there is one for the colt or not. The reason for the enhancement system fr the Sig is because they have a small hex screw on the right side that when tightened it pulls the barrel down and if you look at the gun from the front there is a wider gap at the top of the barrel than at the bottom. They say supposidly that the gun doesnt go into battery the same place every time and the accuracy may be off. By adding the enhancement kit you get a different guide rod and barrel bushing and recoil spring and cap. Tighter tolerance allows that small hex screw to be thrown away and the barrel then sits directly in the center of the new barrel bushing. It shows the reason on the video and i had no idea about this until it was brought to my attention by GunnyGene.
After seeing your gat I know what I need to do to mine now, skeletonize the trigger! If you look close you can see the 3 circles left from the mold on my trigger, If just center punch those babies and drill them out I got it!.I did the same thing with the grips on my colt by switching out the grips. I was getting some rubbing on the action so I took a dremmel to the inside of the slide, but then I had that nasty scratch mark on the action that was visiable. Polished it to a mirror finsh all the way down the barrel , along with the trigger too. Looks sharp. I'll try and include a picture. It looks sharp