Compact, user-installable green Laserguard designed for Sig Sauer P320 (full-size/M17/M18 fits). Front activation with Crimson Trace Instinctive Activation and tool-free battery access for straightforward field use.
The Crimson Trace LG-420G Laserguard is a green laser sight engineered for the Sig Sauer P320 family (fits full-size/M17 and compact M18 variants; does not fit subcompact frames). It installs on the trigger guard and uses Crimson Trace’s Instinctive Activation for front-pad engagement. The unit offers user adjustments for windage and elevation and a Master On/Off switch for training without the laser active. Battery changes are done via a quick-change cover without removing the entire unit.
Product Specifications
The UPC is 610242009084.
The laser color is listed as Green.
The rated output power is 5mW.
The dot size is specified as 0.50″ at 50 ft.
The effective range is listed as 50 ft.
The battery type is CR1/3N (1/3N Lithium).
The unit weight is 1.60 oz.
The mount type is a trigger guard Laserguard design.
The fit is specified for Sig P320 / M17 full-size models and compact M18 references.
Windage and elevation are adjustable; the listed adjustment method is Windage & Elevation.
The activation method is a front pressure pad with Instinctive Activation (pressure pad).
The finish is listed as Black polymer housing.
The wavelength is listed as 633nM in the provided data.
This Laserguard is suited to range training and target shooting where a visible green aiming point aids quick alignment in daylight and low-light conditions. Its user-adjustable windage/elevation and Master On/Off switch make it useful for instructors and competitive shooters who require repeatable sighting and the ability to disable the laser for dry-fire practice.
Durable, simple to install, and focused on practical utility, the LG-420G provides a straightforward aiming solution for Sig P320 full-size/M17 owners who want a factory-style trigger guard laser. The quick-change battery cover and pressure-pad activation keep operation intuitive while preserving a low-profile fit on the pistol’s guard area.
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