Swapped a Beretta PX4 subcompact for a slightly used Kahr P40 at the local gun show last weekend. I was told the P40 had been purchased several months previously as a gun for undercover LE. Took it to the range for the first time today and found it to have a definate LE trigger pull. Extremely long to the point of being really annoying. Is there anything easy I can do myself to shorten the trigger pull? I am handy with tools but I am certainly not anywhere near being in the gun smith category.