"The TRUGLO Tru-Brite Xtreme Compact Tactical Rifle Scope with a fixed 4x magnification provides shooters with a durable tactical sight that delivers well placed shots when speed matters. A generous 4"" eye relief provides rapid, unhindered target acquisition. Fully-coated lenses provide maximum light transmission for clear, bright images. The Tru-Brite Xtreme Compact Tactical Rifle Scope comes with Weaver-style rings that attach to standard Picatinny rails or Weaver scope bases. Models with illuminated reticles can also be used with a black reticle without battery. Fixed 4x magnification Generous 4"" eye relief Fully-coated lenses Weaver-style rings"