Crimson Trace LG-637 Lasergrip Red Glock Full-Size

Crimson Trace’s LG-637 Lasergrip is a rear‑activated laser sight designed for Glock full‑size pistols across Gen 3, Gen 4 and Gen 5 platforms. It employs Instinctive Activation to engage the laser with a normal firing grip and includes a Master On/Off switch for complete power down. The unit installs to the pistol’s grip without permanent modification and offers user adjustments for windage and elevation. The LG-637 produces a 5mW red beam (633 nM) with a 0.50″ dot at 50 ft and runs approximately 4 hours on two CR2032 batteries.

Key Specifications

• The laser color is Red.
• Fits Glock Gen 3/4/5 Full-Size pistols.
• The finish is Black rubber overmold.
• The output power is 5mW.
• The wavelength is 633 nM.
• The dot size is 0.50 inch at 50 ft.
• The battery requirement is 2 × CR2032.
• The run time is Approx. 4 hours.
• Adjustments are Windage and elevation.
• The mount type is a Grip attachment.

Well-suited for range use, low-light sighting, or as a compact aiming reference for everyday carry setups, the LG-637 delivers an intuitive, grip‑activated solution without permanent alteration to the firearm. Its simple installation, field-adjustable alignment, and discreet profile make it a practical upgrade for owners of Glock full-size pistols who prioritize quick target acquisition and straightforward operation.

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