This is a Barska 1x30mm M-16 Electro Sight with 3x30 Magnifier Combo. Designed for advanced combat firearms including AR-15, M-4, SKS and more. High impact rated 1x30 IR, M-16 / AR Tactical Electro Sight Long Eye Relief for quick tactical shooting for AR-15, M-16, M-4, SKS and More! High Impact Rated, built strong to with stand high caliber recoil shot after shot. Tactical red illuminated cross reticle. 100% waterproof, fogproof and shockproof. Long battery life, included, Standard weaver base, Compact lightweight design. 3x30 Magnifier works in combination with Electro Sight to magnify image, resulting in increased accuracy. Can also be used as a hand held magnifier. 100% Waterproof, fogproof and shockproof. Fully coated optics for crisp clear images Includes integrated picatinny/weaver mounting ring.