The Crimson Trace CMR-205 Rail Master Pro Universal Red Laser Sight & Tactical Light combines two tactical tools in a single compact unit. Designed to fit most modern pistols, rifles, and shotguns with an M1913 Picatinny or Weaver-style accessory rail, this versatile unit features a powerful red laser and a 100-lumen white light for target identification. The CMR-205 offers four operational modes, including Laser/Light Constant On, Laser Constant On, Light Constant On, and Laser with Light Dazzler. With instant activation and a 5-minute auto shut-off for power conservation, this unit provides reliable performance in various scenarios.