LaserLyte Features The LaserLyte TGL Master Module Series represents a leap forward in laser sight versatility and convenience for compact firearm owners. This innovative system includes two separate laser housings allowing you to swap the laser module between different firearms with ease. By simply using a Phillips head screwdriver the single screw can be removed to facilitate a quick housing transition. The laser features dual modes including pulse and constant-on giving the user flexibility based on their tactical needs or training preference. To conserve power the unit includes an auto-off feature that helps preserve battery life during periods of inactivity. Specifically designed to fit the Glock 42 this laser module provides a seamless integrated look that enhances the capabilities of your concealed carry pistol. LaserLyte Specifications Manufacturer: LaserLyte Model: Laser Sight Trainer Subtype: Lasers Series: TGL Master Module Fit: Glock 26/27/42/43 Laser Modes: Pulse and Constant On Power Management: Auto-Off Feature Installation: Single Screw Housing Swap Tool Required: Phillips Head Screwdriver Housing: Dual Housings Included Battery: Installed Battery Weight: 0.01 lbs Sights: Integrated Laser