Connects directly to your weapon receiver rail without any modifications or adapters. The TRINITY 4X32 Compact Mil-Dot Rifle Scope w/ Rings offers superb light transmission thanks to its blue fused multi-coated lenses, which reduce internal reflections and also provide protection against scratches. Nitrogen charged with weather-resistant seals Windage and elevation adjustment 3 Inch eye relief provides safety from heavy recoil and enables fast target acquisition Easy installation. Milled from one solid piece of aircraft-grade aluminum to withstand constant heavy recoil Fog-proof and shock-resistant housing. Magnification: 4X Tube Diameter: 1" Objective: 32 mm Eye Relief: 3" Exit Pupil: 8 mm FOV (feet at 100 yds.):36.6 M.O.A.: 1/4 Finish: Matte Black Lens Coating: Blue Length: 7.5" Height: 2" Width: 1.5" Weight: 11 oz.