For the ultimate in laser-based training, use the infrared, invisible laser cartridge together with your Keiron target. Train virtually anywhere with the firearms you already own. Featuring a firing pin / striker-activated infrared laser, these cartridges work great with the Keiron target system (Standard and PRO). Laser Trainers present a hardened rubber primer, functioning much like a snap cap, ensuring the safety of your firing pin. Practice chambering, racking, tapping, and malfunction drills, with the added ability of revamping dry firing into a clear bullet impact drill. A key component of Laser Trainers is two O-rings, establishing a more stable and accurate fit down the barrel of the firearm. Note that this product is designed to be used with a laser-activated target. The laser is invisible.