The RML-RD (Rail Mounted Laser) is a miniature Green laser aiming device designed for handgun applications. The RML-Gr features a durable polymer housing and is powered by a CR1/3N lithium battery with two power settings, high mode (1mW) and low mode (5mW). The RML-RD has ambidextrous activation buttons and includes adapter keys for universal compatibility.Specifications and Features: Power Source: Battery Battery Type: CR1/3N Housing Material: Polymer Surface Finish: Paint Adjustment per Click: 4 MOA Laser & Illuminator Type: Single Laser