The Barska 3-12x 40mm IR Point Black .223 B.D.C. Rifle Scope features bullet-drop technology specifically designed for .223 caliber shooting. The rifle scope's elevation turret is calculated to compensate for the elliptical drop of the .223 with either a 50, 55 or 62 grain bullet. The rifle scope's multi-grain bullet drop compensation chart (B.D.C) is engraved on the elevation turret, allowing for quick and accurate adjustments to the elevation. The rifle scope is the perfect addition to any varmint rifle, bolt action rifle, semiautomatic rifle, AR-15/M-16 rifles, Mini-14, and any of the large selection of firearms that chamber the high velocity .223 bullet. The rifle scope features a glass-etched 3G Illuminated Reticle (IR) that can be switched between red, green, or blue, and is backed by Barska's limited lifetime warranty.