Red dot 1x40 tactical rifle sight red dot airsoft Holographic sight with 11mm 22mm track installation telescopic sight

Product Parameters:|1x40RD
Lens diameter:40mm
Field of view: 57
Magnification: 1X
Weight: 220g
Battery: CR2032(not included)
High-quality aluminum alloy body
Compatible with 11mm and 20mm rails
Optical coating: multi-layer coating
Suitable for airsoft, airsoft and crossbow
Waterproof and anti-fog
Aim quickly
Easy to adjust