This TRS-25 comes with the high-rise mount. This 1x red dot has a 25mm objective and the red dot has 11 brightness settings. Weighing in at 6 ounces, the TRS-25 HIRise provides heavyweight performance. The supplied riser block positions the sight at optimum height on flat top ARs/MSRs and many shotguns.\r\nFeatures\r\n\r\nIncludes High-Rise mount – Mount flush or co-witness with your favorite iron sights\r\nWaterproof Construction – O-ring sealed optics stay dry inside, even when totally immersed in water.\r\nShockproof construction – Built to withstand bumps, bangs, drops and the rough-and-tumble environment of the field.\r\nNitrogen Purged Fog-Proofing – Nitrogen inside the scope ensures interior optical surfaces wont fog due to humidity or rapid temperature change.\r\n\r\nSpecifications\r\n\r\nMagnification: 1x\r\nEye Relief: Unlimited\r\nObjective Lens: 25mm\r\nReticle: 3 MOA Red Dot\r\nExit Pupil: 25.0mm / 0.984\