Crimson Trace LG-420G Laserguard Green Laser Sight for Sig P320/M17/M18 (Except Subcompact) - Black Polymer

The Crimson Trace LG-420G Laserguard is a high-visibility green laser sighting system purpose-built for the Sig Sauer P320 family of striker-fired pistols, including the military-issue M17 (full-size) and M18 (compact) variants. The Laserguard clamps directly to the factory trigger guard and installs without permanent modification to the host pistol, fitting all P320 frame sizes except the Subcompact.

The unit projects a bright 532nm green beam at 5mW output, painting a 0.50" dot at 50 feet for fast target acquisition in low-light conditions and close-quarters defensive scenarios. Effective range is rated at 50 feet, and the laser is fully adjustable for windage and elevation, allowing precise zero to the host pistol's point of impact.

Activation is completely instinctive - the integrated pressure pad on the front strap of the Laserguard powers the laser on automatically the moment the shooter takes a normal firing grip, with no buttons to find or switches to manipulate under stress. This pressure-activation design is a hallmark of Crimson Trace's Laserguard platform.

Weighing just 1.60 oz, the LG-420G adds virtually no bulk to the host pistol. The black polymer housing matches factory P320/M17/M18 cosmetics and is powered by a single CR1/3N lithium battery providing up to two hours of run time. A user-replaceable battery cover allows fast swaps in the field without removing the unit from the pistol.