Well I finally got to try the LG430 Crimson Trace Laser on one of the Kel-Tec 3AT's. Short version of report?....... ;D Now the long version... The laser is a very simple design and very easy to install. Simply snap on one side, insert the battery, snap the other side on and install two screws. I was concerned about my big hands (almost 10 inches from tip of thumb to tip of little finger when hand is spread) being able to activate the under the trigger gaurd switch. I had that problem with the small grip CTC laser on my J Frame S&W. The larger CTC laser grip on the J Frame works fine for me. It is NOT a problem for me on the 3AT. The way the Kel-Tec 3AT and the Crimson Trace LG430 fit, I can EASILY obtain proper grip, activate the laser and fire the gun. The laser was zeroed out of the box and remained that way for the first 50 rounds. After the first 50, I took it off, cleaned the gun, and re-installed. (THE LASER DOES NOT HAVE TO BE REMOVED TO CLEAN THE GUN! In fact, the gun could be completely stripped down with the laser installed.) I took it off because I needed to know if it would hold zero after the re-install. It did hold zero after the reinstall. It held zero for another 50 rounds of WWB and 13 rounds of my carry ammo (DPX). Also worthy of noting is that the 3AT went bang 113 times without a hickup! Overall, I was VERY IMPRESSED with the laser. It allows for very fast pointing and shooting without the need to find the sight picture, and to some degree it helped extend the range (distance) of my abilities. I was easily able to hit COM at 50 feet! Now switching to how it looks and holster compatability! HOLSTER FIT Guru Dave...NO GO! Desanti Nemisis: GOOD! Uncle Mikes #36: GOOD! 5:11 : Good!