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. Features: MAGNIFICATION LOW: 1X MAGNIFICATION HIGH: N/A OBJECTIVE LENS DIA. (MM): 30 ADJUSTMENT GRADUATION (MOA):1/2 LENS COATING: Multicoated W/E ADJUSTMENT RANGE: 40 EYE RELIEF (INCHES): Unlimited FOV LOW @ 100' (FT): N/A FOV HIGH @ 100' (FT): N/A 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