The highly anticipated LG-451 Laserguard® is Crimson Trace"s first 1911 pistol green laser sight. Designed to fit seamlessly on the trigger guard of 1911 Government (5") and Commander (4" to 4.25") models, the LG-451 takes the unmatched low-light defensive capabilities of red lasers to a new level. Highly visible in all lighting conditions, the LG-451 Laserguard® is the ultimate tactical upgrade for your 1911 pistol. Specifications/p> - Platform: Laserguard® - Material: Polymer - Color: Black - Activation Location: Front Activation - Master On/Off Switch: Yes - Attachment: Trigger Guard Attachment - Battery Type: One CR2 Lithium Battery - Finish: Polymer Housing with Rubber Overmold Activation Pad - Installation: User Installed - Laser Battery Life: Over Two Hours - Activation Mode: Pressure Activated - Sighting: Factory Sighted at 50" - User Adjustable Windage and Elevation - Warranty: Three Year Full Warranty - Dot Size Approx.: 0.50" at 50" - Fits: Kimber & Smith & Wesson Full-Size and Compact 1911 Pistols