The LS117IR is a class IIIa IR (infrared) laser aiming device designed for use with night vision devices on long gun applications. The LS117IR features a 7075-aluminum matte black anodized housing with a quick release Picatinny rail mount. The LS117IR is powered by a single AA battery which can provide up to 5000 hours of battery life.The rear facing selector switch lets the user select between constant ON, OFF, or activation using the included remote pressure switch. The LS117IR also includes tactile windage and elevation adjustments for a precision zero.