LaserMax Uni-Max Essential Series red laser sight, model LMS-UNI-ES. This compact universal aiming system mounts to firearms equipped with a compatible Picatinny, Weaver, or M1913-style accessory rail and requires approximately 1.75 inches of available rail space. The sight produces a constant 650nm red laser dot with an output below 5mW. Windage and elevation are independently adjustable using the included tool, allowing the aiming point to be aligned for the firearm, ammunition, and intended distance. The three-position Controlled Activation switch can be operated from either side, providing convenient access for right- or left-handed users. A distinctive feature of the Uni-Max design is its integrated lower accessory rail. This allows a compatible tactical light or other rail-mounted accessory to be installed beneath the laser without sacrificing the firearm’s original rail position. The housing is constructed from durable nylon and weighs approximately one ounce with batteries installed. Power is supplied by two 357 silver-oxide batteries. Two older batteries are included as pictured, but their remaining charge and usable life cannot be guaranteed. This discontinued sight appears unused and includes the adjustment tool and original installation guide. The original clamshell packaging has been opened and shows cosmetic storage wear. Laser sight and accessories only. Firearm shown on the packaging is not included. The LMS-UNI-ES combines a universal red laser with an integrated accessory rail, allowing the user to retain mounting space for an additional light or accessory. Its compact size, ambidextrous activation, adjustable alignment, durable nylon construction, and discontinued status make it a useful and increasingly uncommon LaserMax system.