Crimson Trace | Lasergrips LG-637 | Fits Glock Gen 3/4/5

The Crimson Trace Lasergrips LG-637 are a rear-activated, grip-mounted laser sight designed for use with full-size GLOCK frames. The unit installs to the pistol frame and uses Crimson Trace’s Instinctive Activation via a pressure pad, plus a Master On/Off switch for complete power-down. It offers user-adjustable windage and elevation and is intended for rapid target acquisition in low-light or competition/practical shooting contexts. The sight is packaged complete and designed for user installation without frame modification.

Product Specifications

• The manufacturer is Crimson Trace.
• The model and part number are LG-637 / 01-6730-1.
• Compatibility includes GLOCK Full-Size Gen 3 (17/17L/22/24/31/34/35/37), Gen 4 (17/22/31/34/35/37), and Gen 5 (17/19/19X/45).
• The unit provides user adjustments for windage and elevation.
• The mounting method is a grip attachment that secures to the pistol frame.
• The listed optical power is 5mW.
• The power switch is a pressure pad (rear-activated) with Instinctive Activation.
• The package run time is approximately 2 hours with the included batteries as supplied by the source.
• The unit is user-installable in moments and includes a Master On/Off switch.
• The dot is specified as 0.50 inch at 50 feet.
• The effective range is listed as 50 ft.
• The finish is a rubber overmold.
• The listed weight is 0.24.
• The UPC is 610242005475.

These Lasergrips are built to give shooters quicker sight acquisition and consistent activation without changing grip mechanics. The LG-637’s tool-free user installation, windage/elevation adjustments, and Master On/Off switch make it a practical accessory for competitive or practical shooters and for low-light range training where fast, repeatable aiming is valuable.