BUSHNELL 4-12X50 Tactical Optical Rifle Scope Red Green Dual Illuminated Shockproof Scope Fit For 20mm Rail Hunting Airsoft

1, Multi-coated optics 2, Magnum recoil-proof construction 3, 90% light transmission 4, 100% waterproof/fogproof/shockproof construction 5, Dry-nitrogen filled 6, 1/4 M.O.A. or finer fingertip, audible/resettable windage and elevation adjustment 7, Adjustable Objective - 10yds to Inf 8, 21mm Mount