Ultimate Arms Gear Ruger Ranch Rifle .223 7.62 Mini-14 Mini-30 PC-9 PC-4 Carbine Rail Mount + CQB 4 Reticle Dual Red/Green 1 X 33mm Open Reflex Sight Rail Weaver-Picatinny System Sunshade Rail Mount Fits Onto The Existing Integrated Ruger Scope Ring Slots/Grooves. Provides a Weaver Picatinny Standard Accessory Rail for Scopes, Red dot, Lasers etc. Precision Machined with A Hard Anodized Finish Built to Withstand Severe Recoil Abuse. Easy No Gunsmith Installation Requires No Permanent Rifle/Carbine Modification. Tubeless Open Reflex Design - Solid Aircraft Aluminum Construction ; Overall Length: 3.5 inch , Weight: 5.8oz. 4 Separate Reticle Patterns In Both Red and Green With 6 Diferent Brightness Settings (3-Red 3-Green).Integrated Tri Rail Weaver Picatinny Rail System For Attachment Of Lights-Lasers Directly Onto The Sight! Full Windage and Elevation Adjustments.