Crimson Trace CMR-201 Rail Master Universal Laser Sight M1913 Rail/Glock Red Dot Black. With a universal platform that easily attaches to M1913/Picatinny and Weaver rails this Red Laser Sight from Crimson Trace can connect to all of your favorite firearms. Featuring instant activation with the quick flip of a switch the Crimson Trace CMR-201 Rail Master Red Laser Sight ensures that your red laser is immediately ready for target acquisition. Ambidextrous and adjustable for all shooters the Crimson Trace CMR-201 Rail Master Ambidextrous Laser Sight can easily switch from one firearm and one user to another. The Crimson Trace CMR-201 Rail Master Universal Laser Sight offers Secure Lock technology so you devote less time to preparing and more time to shooting. Fit note: The Crimson Trace Rail Master may fit a rail-equipped handgun if the measurement from the trigger guard to the first recoil lug is greater than 1.125" (1 1/8) inches (measurement is taken from the front of the trigger guard to the edge of the recoil lug closest to the trigger guard). Specifications for Crimson Trace CMR-201 Rail Master Red Laser Sight w/ Universal Mount: Manufacturer: Crimson Trace Beam Color: Red Laser Output: 5 mW Maximum Range: 50 ft Attachment Type: Picatinny Battery Type: CR2 Lithium Battery Life: 2 hours Reticle: Dot Gun Make: Universal Gun Model: Universal Length: 1 in Width: 1 in Height: 1 in Weight: 4 oz Fabric/Material: Polymer/Aluminum Combination Condition: New Mount Type: Rail Beam: 0.5in at 50ft Features of Crimson Trace CMR-201 Rail Master Red Laser Sight w/ Universal Mount Aluminum rail clamps to prevent slipping Robust polymer body Windage and elevation adjustable Externally replaceable 1/3N Li battery (Included) 4-hour battery life (constant ON) Brightest allowable 5mw red laser emitter Small footprint allowing for fit on wide range of handguns and rifles Two rail fit adapters universal and GLOCK profile Package Contents: Crimson Trace CMR-201 Rail Master Red Laser Sight w/ Universal Mount What firearm models does the manufacturer say Crimson Trace CMR-201 Rail Master Red Laser Sight w/ Universal Mount is compatible with? The manufacturer suggests that Crimson Trace CMR-201 Rail Master Red Laser Sight w/ Universal Mount is compatible with UniversalCrimson Trace 01-3000226: CMR-201 Rail Master Universal Laser Sight M1913 Rail/Glock Red Dot Black