This is a Sig Sauer Laser known as the LIMA1, model SOL11001.
The LIMA1 Red and Green Pistol Laser Sights are the most advanced" low profile laser sights for handguns with rails. The unique" LIMA1 lasers mount to any Picatinny 1913 or Sig Proprietary Rails with no need for adapters or cross-slot modifications. Dual" finger actuated paddle switches support ambidextrous use while functioning in either continuous or momentary mode. Direct green or red lasers are used for industry leading runtime in a compact" 1/3N cell powered laser sight. The sights are ideal for target shooting" conceal carry and personal / home defense and will fit most holsters designed for rail mounted lasers and flashlights.
Features:
Latest generation 5 mW Red or Green lasers for unmatched runtime
Ambidextrous paddle switches for easy finger actuation
Momentary or Continuous On with 5 minute auto-timeout
Bottom mounted battery compartment allows for easy access without removing the laser
Windage and Elevation adjustments
Dependable waterproof (IPX-7 rated for complete water immersion up to 1 meter) and fog-proof performance
The LIMA1 comes with adjustment tool, 1/3N battery and instruction manual
Mounts to any Picatinny 1913 or SIG SAUER proprietary rails