Crimson Trace LG492G Laserguard Sig Sauer P238 and P938 Green Laser Trigger Guard To enhance targeting acquisition of this fine shooting compact, Crimson Trace's LG-492 Laserguard attaches to the trigger guard of the P238/P938 by two factory supplied screws. The LG-492 is fully adjustable for windage and elevation and comes sighted in at 50 feet from the factory.