1: My P3-AT is a piece of trash, 4% consistent failure rate over 1000 rounds, either FTE or FTF. Fluffed and buffed, treated it like a baby. Two other friends got one right when I did; all 3 have been back to the factory, one major repair job done at home. Raise your game, Kel-Tec.
2. LCP has been flawless in shooting. The checkering could be a little better, it moves around in your hand a bit, so you have to squeeze a little tighter than the Kel-Tec.
3, The Kel-Tec belt clip will fit the LCP. It does take some patient adjustment... a small headed hammer, lots of tapping, test fit every few taps and try not to scratch the gun. If you are willing to gun a little time into it, it works like a charm.
So, don't let the belt clip hold you back from an LCP.Again your experiences might be different. You may have a flawless Kel-Tec and a crappy LCP. Anything is possible these days. Except for an attractive Glock (hey relax, I never said they weren't good guns)