Feature A Precise Bullseye Aiming: Reticle Design for Benchrest Shooting with 0.35 MOA Center Dot Optimized for 25m Targets A Bright and Clear Imaging: Fully Multi-Coated Lens Increases Light Transmission for Enhanced Visibility A Accurate Adjustment Control: 30mm Tube Dia Expands Elevation Range to 70 MOA with 1/4 MOA Click Value A Reliable Zero Return: Zero Stop Function Effortlessly Returns to a Pre-Set Zero Point for Consistent Accuracy Specification SCFF-56 Sentinel 4-16x44 FFP Magnification: 4-16x Objective Lens Diameter: 44 mm Focal Plane: First Focal Plane Eye Relief: 100 mm Lens Coating: Fully Multi-coated Field of View @ 100 yd: 24.6-6.3 ft Field of View @ 100 m: 8.2-2.1 m Angular Field of View: 4.7-1.2Adeg Reticle: VSE-3 MOA Tube Diameter: 30 mm Side Focus: 10 yards to Infinity Click Value: 1/4 MOA Turret Function: Zero Stop Elevation Adjustment Range: 70 MOA Windage Adjustment Range: 50 MOA Diopter Compensation: -2 to +2 Illumination Setting: 6 Gears Battery Type (Include): CR2032 Battery Life: N/A Waterproof: IPX4 Fogproof: Nitrogen Filled Shockproof: 750 G Housing Material: 6061-T6 Aluminum Alloy Finish: Matte Black Length: 358 mm / 14.08 in Weight: 775 g / 27.3 oz Items in the Package: User Manual, Plastic Wrench, Cleaning Cloth, Flip-up Caps, Hex Keys, Sunshade, etc. Size Reticle Download VSE-3 MOA FFP Reticle Manual Sentinel User Manual Video Compatible Gun Type For Benchrest Shooting: CZ 457 (.22LR), Tikka T1x / Anschutz / Sako / Howa, Remington 700 / Tikka T3x