OTW Rifle Scope 3-9X56 Red&Green Mil-dot Illuminated Optics Optical Scope 3-9X Magnification and 2.2" (56mm) Objective Diameter. 5 Different intensity level in both Red and Green Illuminated Optics with clear image. 20mm Weaver rail scope ring mounts make it more satable and convenient. Made of Black Anodized Aluminum Material with fog-proof and shock-proof design. 6-Month Warranty for Quality and Service Gurantee.