The 30RD-2M is a versatile 30mm Red Dot scope available with both a Dovetail and Weaver mount. With 11 brightness settings this red dot is excellent for both low light and bright light conditions. - MAGNIFICATION LOW: 1X - OBJECTIVE LENS DIA. (mm): 30 - ADJUSTMENT GRADUATION (MOA): 1/2 - LENS COATING: Multicoated - W/E ADJUSTMENT RANGE: 40 - EYE RELIEF (Inches): Unlimited - PARALLAX SETTING (yds): Fixed - ADJUSTABLE OBJECTIVE: No - SIDE PARALLAX ADJUSTMENT: No - RETICLE TYPE: 5 MOA Red Dot - ILLUMINATED COLORS: Red - BRIGHTNESS ADJUSTMENT: 11 - FOGPROOF: Yes - SHOCKPROOF: Yes - WATERPROOF: Yes - RINGS / MOUNT INCLUDED: Yes - RING / MOUNT TYPE: Two One Piece Mounts Dovetail and Weaver - BATTERIES REQUIRED: Yes - BATTERIES INCLUDED: Yes - BATTERY CELL TYPE: CR2032 - COLOR: Matte Black - WARRANTY: Limited One Year