The BSA Sweet .17 AO Rifle Scope is a 3-9x40 optic specifically designed for the .17 HMR 17gr bullet. This scope features a long eye relief offering comfortable extended viewing and is suitable for hunters who wear glasses. The adjustable objective and 1/4 MOA click value provide simple use with an accurate sight picture. Features a preferred duplex reticle and bullet drop compensating turret. Made with 1" diameter all-aluminum one-piece tube, this rifle scope is waterproof, shockproof, and fog proof.