This new laser trainer fits .22 caliber weapons by mounting in the barrel and has a sound activated switch showing bullet impact with a laser dot. Every time your hammer or striker fires the small laser dot will flash for 100 milliseconds simulating bullet impact. This model installs from the muzzle of the barrel and fits tight with the use of LaserLyte’s patented arbor and taper system. The system will fit the weapons chambered in 22LR, 22WMR, 22Short, 22Long and .223 that have a minimum of a 1.875 inch barrel. The LT-LR will also fit other .22 caliber bullets like the 22-250 and 220 Swift. The trainer will only extend past your barrel less than an inch. This setup will be versatile for any location to effectively laser train. One can instruct a new shooter on a rifle or practice their skills. You can use your favorite pistol along with the trigger pull you are used to.