FIT: (for EZ Shield models only) Included in your purchase is the TR28 ArmaLaser, RH Laser Holster with extra magazine pouch and is adjustable (optional pocket or belly-band holster available to subst. ) and 2 extra batteries for a total of 3 batteries. LASER FIT: Touch-Reflex TR28 fits the S&W Smith-Wesson EQUALIZER,, Shield EZ 380 and 9mm, M&P22 Compact.. MUST say "EZ" on barrel. 5-year warranty, the TR28 turns on by human touch, not by a mechanical switch or button. As soon as you grasp your pistol, the True-Touch Activation sensor will turn the laser on and keep it on as long as you're grasping the pistol grip. Move your middle finger forward and the laser will shut off. It is seamless, immediate and requires no button to be pushed or secondary operation. The TR28 features a convenient battery door to replace its single CR1/3N battery so you won't lose any of the laser's ''zero'' when replacing batteries like with other lasers. A master kill switch is recessed into the DuPont Zytel fiber-reinforced nylon housing (same material used on some gun frames) to allow practice without the laser if needed. Incredible 5 hours of run time and up to 2 years of standby time even if the TR28 is placed in ''ready to activate'' mode. FDA Class IIIa Laser Product (Does not exceed Class IIIa emission limits), less than 5mW power output. . There is a very big difference in laser brightness between a 650nm laser and the 635nm one used in the TR28, especially during daylight. It's incredibly strong and sturdy with incredible abuse-absorbing rigidity. Requires no tools, pin removal, or gunsmithing. Installs easily in minutes and is simple to adjust to point of aim. Best of all, it stays adjusted no matter how many rounds you fire. The TR28 can also switch between a steady laser beam mode and pulsing beam mode. (*Please note: only the laser holster being sold - NOT the gun.)