The LG-469 LaserguardA(R) is a compact laser sight for Springfield Armory&';s XD-S pistol. Featuring Instinctive Activation(TM), which allows you to activate the laser sight by simply gripping the pistol in a normal firing grip. Installing in moments, the LaserguardA(R) is also fully adjustable by you, for windage and elevation, so you can get the best shot quickly and precisely! Laser sight for Springfield Armory XD-S 3.3 and 4.0 Attachment: Trigger Guard Attachment Activation: Instinctive - Front Material: Polymer Master On/Off Switch: No Battery Life & Type: 4 Hours / 1/3N 3V Lithium (1) OR .357 Silver Oxide Batteries (2) User Adjustable Windage and Elevation