Crimson Trace’s Lasergrips for the Smith & Wesson M&P compact pistols, LG-661, fits the compact M&P chambered in .40 S&W, 9mm and the.357 SIG caliber of pistols. The LG-661 replaces the stock M&P back strap grip insert and slides into place in just a few seconds using existing factory parts. Two No. 2032 batteries located in the palm swell on the sides of the Lasergrips, providing more than 4 hours of a constant-on beam time. The master switch on the backstrap has a touch sensor switch that allows users to turn the unit on or off even while using gloves. A 3.3mm diameter laser diode versus the standard 5.6mm diameter diodes found in most brands results in a lower profile diode housing and a laser that emits the same brightness as one almost twice its size.
