Alpha Optics AO-4221 Night Vision Weapon Sight

You are here

 Alpha Optics AO-4221 Night Vision Weapon Sight

Key Features:

- Compact, rugged design

- Weather resistant

- Built-in IR illuminator

- Bright light cut-off

- IR ON and LOW BATTERY indicators

- Ergonomic control

PDF icon Download Spec Sheet (628.97 KB)
Field of View 12°
Lens SystemF80/1.6
Focus Range5 m to infinity
Eye Relief45 mm
Diopter Adjustment Range -4 to +4 dpt
Detection Range280 - 500 m
Infrared Illuminator Build-in
Battery TypeOne AA Alkaline or one CR123 (3V)
Battery Lifeup to 60 hours at 20°
Environmental Rating IPX4
Operating temperature-40°C to +50°C
Dimensions229 x 97 x 75 mm
Weight 820 g


The Alpha Optics AO-4221 is modern, high-power, professional night vision hunting sight of Gen 2+ standing out for its compactness and light weight. It has all-metal housing made of light alloy (ergal), high-quality all-glass optics completely coated with anti-reflex layers, microprocessor controlled operating modes, low power consumption, ON/OFF, and low battery indicators, built-in infrared illuminator. It is available with 2 lenses of 3x or most used 4x magnification with internal focusing. It can also be equipped with continuous adjustment of power of the image intensifier tube and light exposure of the reticle. Standardly it is equipped with Weaver rail to attach additional powerful IR laser illuminator, collimator or other accessories. For viewing it can be mounted on a tripod.