Reddit reviews Twod 1x22mm 5 MOA Red Green Dot Sight,Reflex Holographic Tactical Scope Dual Color Illuminated Compact Micro Red/Green Reticle with Circle Dot Micro Rifle Scope Fits 21mm Picatinny Rail Mount

Adjustment knobs:Easily switches from a green dot to a red dot.Red or Green Dot Adapts to Any Environmental Background.Finger adjustable rheostat enables user-controlled brightness of the green/red dot.Unlimited field of view :Great Field of View and Unlimited Eye Relief offer target scanning over the total field of engagement.Clear and Sharp 5.0 MOA Dot Sight,user-defined, green or red dot for pinpoint accuracy.Quick target acquisition:Aim and Instant Lock On Target to Enhance Shooting Accuracy and Performance.Unlimited field of view offers target scanning over the total field of engagement.Compact and lightweight:The red/green dot sight is small to integrat picatinny/Weaver exchangeable mount for mounting the sight to a weapon.Fully Multi-Coated: Multicoated optics with anti-reflective coating on at least one lens surface reduces light loss and glare due to reflection offering a brighter, higher-contrast image.