Trigger Shoe

Trigger shoe for P series pistols part # (P-392) (add G for grooved, A for aluminum) availible directly from Kel-Tec. The shoe increases the trigger surface from .3 inches to .5 inches wide. This lessens the perceived weight of the trigger pull. This is very nice on the P-11/40 which has and advertised trigger pull of 9 lbs.
Some people advocate putting them on the P32 which has an advertised trigger pull of 5 lbs. I do not like this idea however because the shoe is wider than the P32 trigger guard.
You can use a bit of gasket sealer to help keep the shoe in place. You can also use a small drill bit (turn by hand only) to create dimples in the side of the trigger where the set screws contact the trigger to prevent the shoe from sliding.
A word on placement: Before you semi-permanently install the shoe, try a few different positions, I like mine near the top, where it contacts the grip and takes up the slack in the trigger pull. (make sure the trigger resets every time) Others like the shoe at the very tip of the trigger. This keeps the finger from getting pinched between the trigger and trigger guard (never pinched my finger) and provides maximum leverage for the trigger pull.
Alternative method:
I enlarged the opening in my grip enough so that the frame could be removed with the shoe installed. (ordinarily it must be removed) Then I used epoxy to permanently attach the shoe.
As you can see, it doesn't take much to make room for the trigger with the shoe. Knowing that the shoe absolutely will NOT come off is well worth the effort.