This riflescope has main tube diameter 30mm and overall diameter of the objective bell is 24mm.

• 30mm Monotube, Edge-to-Edge Image, 1/2MOA Capped Adjustment, Wide F.O.V.

• Parallax Set at 50 Yds, >4" Eye Relief, FMC, Fine Lines Reticle with Center Dot.

• Magnification: 1-4x
• Objective Lens: 24mm
• Ocular Lens Dia: 33mm
• Ocular Lens Length: 80mm
• Exit Pupil: 24-6.0mm
• Field of View: 73.3-23.6 feet
• Eye Relief: 110-90mm (4.3-3.5")
• Optics Coating: Fully-multi coated
• Length: 260mm / 10.2 inch
• Weight: 390g / 13.8oz
• Tube Dia: 30mm monotube
• Click Value: 1/2MOA
• Elevation Range: 100MOA
• Windage Range: 100MOA
• Parallax Setting: 50 Yds
• Reticle: VFD-3
• Finish: Black matte
• Length of middle turret part: 36mm (1.4 inch)
• Distance between middle turret parts to power ring: 48mm (1.8 inch)
• Shock tested to 750g, IPX4 water resistant
• Fully nitrogen purged to eliminate any fogging of the lenses internally
• High quality 6061 T6 aircraft grade aluminum
• Diopter compensation from fast-focus eyepiece (+2 to -2)
• Including items: one pair of 30mm weaver scope rings, lens caps and cleaning cloth etc.