This is a kit that I recommend for taking to a pistol class. These items will ensure that you can focus on the learning experience instead of on failing gear.
Determining Unknown Calibers with Cerrosafe
Beretta 92 G (Decocker Only) Kit Overview & How To Install It
Blue Guns at shot show 2015
Long Range Ballistic Corrections made Easy with Spot On System
Best EDC Light! 500 Lumen Limited Edition S1 Batons.