Ultra Compact and User Friendly are what make this Red Laser one of the best on the market. This Laser is constructed of the durable plastics available making it not only rock solid, but extremely light weight. The Laser is fully adjustable and will mount to most Weaver Style/Picatinny Accessory Rails. The best part is the Built-in Weaver style rail to accommodate a our AQPTF Flashlight or any other accessory that you need.