The NcSTAR Vism evolution Series glass etched P4 Sniper reticle rifle scope is designed to be the perfect riflescope for military and law enforcement personnel. This rifle scope is made with large windage and elevation turrets that are incredibly easy to adjust with gloves or bare hands. The Vism evolution 50mm objective tactical riflescope has quick focus and magnification rings that allow to quickly change the settings to coincide with that of your environment. This Vism weapon scope has a 30mm tube diameter and is made using incredibly durable construction and materials, to provide you with a scope that is both long lasting and efficient. The Vism tactical EVO 4-16x magnification rifle scope is a great way to give you a distinct advantage in the field. Features: - Ocular lens - quick focus ring - rheostat knob - magnification ring - windage & elevation dial - Parallax adjustment dial - etched glass reticle. Specifications: - magnification: 4-16x - objective lens: 50mm - reticle: P4 Sniper - tube diameter: 30mm - field of view: 27.2-6.8ft at 100 yds - click value: 1/8 MOA - eye relief: 4.8-3.3" - exit Pupil: 12.5-3.1mm - length: 14.2" - weight 25.3oz - finish: matte black.