If you're stuck with a crappy Series 80 trigger pull on a Colt or Para Ordnance pistol, you can get a 1911 Series 80 Trigger Pull Reduction Kit from Cylinder & Slide. Master Gunsmith Bill Laughridge has retired but Cylinder & Slide's store is still online. This set contains a Firing Pin Block Plunger, National Match Plunger Lever, Trigger Lever, Hammer Pin and Sear Pin. All are hand polished and Titanium Nitride coated, with an exclusive moly-disulfide coating. Reduces Series 80 Trigger Pull approximately one pound, without risky modifications to Series 80 Colt's firing pin safety system. Especially helpful in achieving the light trigger pull on Series 80 pistol. Reduces the creep and jump in the takeup that's inherent in these guns. When used with custom, after-market parts, trigger pulls as low as 2-½ lbs. can be safely achieved without hammer-follow. I'm using one of these kits and it's the only thing that makes the heavy trigger pull on my P10-45 acceptable. There are fewer options for aftermarket fire control parts in the sub-compact gun, and this just drops in. They also sell it at Optics Planet, Brownells, Dawson Precision and other places. My full-size gun that's all hard-chrome plated has a better trigger pull because everything is smooth and slick, not just these parts. I could put a better hammer and sear in the P10, but it's not a bullseye pistol, it's a defensive gun, and it's good enough for now.
https://cylinder-slide.com/Item/CS0003 I also like the Cylinder & Slide Dunk-Kit. I have some gun parts soaking right now. I think when when I'm done, I'm going to drain the bucket and filter the fluid through a coffee filter to get rid of the crud that's accumulated over the years.
https://cylinder-slide.com/Category/Dunk