Bsa 30MM Red Dot W/ Dovetail & Weaver Mounts 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