This is a Crimson Trace Corporation Laserguard known as the Laserguard, model LG-492G.
Sig Sauer fans wanted a compact" lightweight pistol that performed like a full size. Enter the P238 in .380 and the P938 in 9mm. To enhance targeting acquisition of this fine shooting compact" Crimson Trace's LG-492G Green Laserguard(R) attaches to the trigger guard of the P238/P938 by two factory supplied screws. The LG-492G is fully adjustable for windage and elevation and comes sighted in at 50 feet from the factory. See our holsters section for a custom holster to securely fit your laser equipped P238 or P938.
Features:
Front activation
Green laser
Factory sighted at 50Ft
.5 inch diameter at 50 feet