The sub-compact pistol sized Holosun HS407K-X2 Red Dot Sight provides a large field of view paired with useful features that will help you stay on target while greatly reducing target acquisition time Made for carry pistols, this optic offers a Lock Mode that prevents unintentional button presses while the optic is holstered and a side access battery tray, which allows the operator to change the battery without removing the optic from the firearm Holosun machined this product from light yet rugged 7075 T6 aluminum and added a multicoated lens that provides a bright, crisp sight picture The Holosun HS407K-X2 Red Dot Sight uses a high capacity lithium battery to power the optic, ensuring you'll always have a reliable point of aim in the field These optics are designed with Shake AwakeTM technology that senses motion to power the sight on and off, and last setting recall ensures you don't lose your customized options once the unit powers down This model offers up to 50,000 hours of battery life with a bright and crisp 6MOA dot only reticle Enhance your shooting skills and create a better experience at the range by equipping your pocket pistol with a Holosun HS407K-X2 Red Dot Sight