BEST TRIGGER FOR KP-15
The info on what triggers will fit a KP-15 lower is incomplete everywhere you look, so I turned to trial and error once I got my first one. I had a Gessiele SSP trigger that did not work very well in a previous build so that was the first one I tried. It fit the KP-15 and worked great and is still in the rifle. The only thing I did differently was use a KE Arms extended hammer pin as a mil spec pin sits below flush and looks goofy. On my next one I used my favorite AR trigger, a 3lb single stage Timney. It fit, but the screws that tighten up the Timney bowed out the bottom of the receiver. I didnt want the hassle of making a metal shim so I ordered the KE Arms trigger, the SLT-1 and swapped out the Timney. It fits great as you'd expect and installation is actually easier than a mil spec setup. This is a good quality trigger. There is very little take up and creep and hardly any over travel. If I had to rate it with mil spec being a 1 and Timney a 10 I would place this trigger at a solid 8. This is the best trigger overall for the KP-15. Construction is simple. Its essentially a tuned and lightened milspec style unit fitted into a cassette. One big difference of course us that the SLT unit is single stage. The cassete has keepers built into it that capture the pins which is why assembly is easier than just about any other trigger I've seen. These are well built and the design seems to be as durable as the original mil spec. I will use these in all my future KP-15 builds and recommend them to anyone else with a KP-15 lower. Don't forget to order an extended hammer pin and KE Arms safety selector as well, those are parts I figured out I wanted after I got my first lower then had to wait to get hold of. If you are thinking about a KP-15 lower you should get one, they are easier to assemble than anything else out there and are a great design.
