The BSA Sweet .243 AO Riflescope is a 3-9x40 scope built for .243 caliber rifles. This scope is calibrated for .243 55 gr, 80gr, and 100gr bullets. Features a long eye relief for comfortable viewing, an adjustable objective, as well as a preferred duplex reticle. This scope offers windage and elevation adjustments with 1/4 MOA clicks. The Sweet .243 AO also features a fully coated lens, a second focal plane 30/30 reticle, and 2 piece Weaver rings. Made with 1 diameter all-aluminum one-piece tube, this rifle scope is waterproof, shockproof, and fog proof.