4-12X50 EG Optical Rifle Scope Red Green Dual illuminated with Side Rails-Mount4 12X50EG Optical Rifle Scope with Mounts & Accessory RailsThis tactical rifle scope is well suited for mid to long range shooting, with high optical clarity at 4 12X times magnification and a 50mm objective diameter. The reticle is illuminated in red or green and in multiple brightness intensities, for a suitable sight picture regardless of lighting or environment. The integrated 20mm tri rail provide ample space for attaching multiple accessories.