Nikon P-22 2-7x32 Matte BDC150 Generous, Consistent Eye Relief-Keeps your brow safeeven with the heaviest recoiling cartridges, lightweight rifles, and severe shooting angles. BDC 150 Reticle-Developed specifically for the trajectory of the .22 Long Rifle Rimfire round, the new BDC 150 reticle offers shooters unique open circle aiming points 50 to 150 yards. Precise, 1/4-MOA Hand-turn Tactical-Style, Zero-Reset Turrets-Positive click reticle adjustments get you zeroed in quicker and maintain your settingeven withrepeated recoil. 50-yard Parallax Setting-Eliminates parallax for precise shooting. Waterproof/Fogproof-Nitrogen filled and O-ring sealed