The Leupold Mark 5HD 3.6-18x44 Rifle Scope is light in weight and big on features that will improve your accuracy and performance. These Rifle Scopes developed by Leupold has a fast-focus eyepiece that allows you to acquire targets on the hunting grounds quickly. This Leupold Mark 5HD 3.6-18x44 Rifle Scope uses the Twilight Max HD Light Management System to provide an incredibly bright sight picture, and these rugged scopes are waterproof and fogproof for use in any weather conditions. Equip the Leupold Mark 5HD 3.6-18x44 FFP Rifle Scope to boost your precision on your next hunt. How Long Is the Mark 5HD? Leupold Mark 5HD scopes vary in length depending on the model. This specific 3.6-18x44mm model is 12.1 inches long. How Far Should a Leupold Mark 5HD 3.6-18x44 Rifle Scope, 35mm Tube, First Focal Plane Be Off the Barrell? The optimal height for mounting a scope on a rifle can depend on various factors, such as the type of rifle, the shooter's preferences, and the specific scope characteristics. Generally, a common recommendation is to mount the scope as low as possible without it touching the barrel. Some shooters prefer a lower mount for better cheek weld, stability, and a more natural shooting position. However, ensuring the scope has sufficient clearance from the barrel to avoid contact is crucial, especially if the rifle has significant recoil. Specifications for Leupold Mark 5HD 3.6-18x44 Rifle Scope, 35mm Tube, First Focal Plane: Manufacturer: Leupold Objective Lens Diameter: 44 mm Magnification: 3.6 - 18 x Tube Diameter: 35 mm Reticle Focal Plane: First Focal Plane (FFP) Exit Pupil: 2.4 mm Finish: Matte Field of View, Linear: 5.8 - 28.3 ft at 100 yds Eye Relief: 3.5 - 3.8 in Weight: 26 oz, 737.08 g Parallax: Side Focus Battery Type: CR2032 Width: 2.1 in Fabric/Material: 6061-T6 Aluminum Height: 2.1 in Lens Material: Glass Optical Coating: Scratch-Resistant Brightness Settings: 7 Weather Resistance: Yes Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Battery Quantity: 1 Package Type: Box Magnification Type: Variable Condition: New Overall Length: 12.06 in Features of Leupold Mark 5HD 3.6-18x44 Rifle Scope, 35mm Tube, First Focal Plane 5:1 ZOOM RATIO Professional Grade Optical System Side Focus Zerolock Adjustments Zero Stop First Focal Plane Waterproof Fogproof Shockproof Package Contents: Leupold Mark 5HD 3.6-18x44 Rifle Scope, 35mm Tube, First Focal Plane