Vortex Cantilever Rifle Scope 30mm Ring Mount allows you to equip and properly use a rifle scope on your AR-15 flat top rifle. These Vortex ring mounts feature a two to three-inch offset orientation, which allows you to install your telescopic sight in a forward location. With its offset position, you can maintain the correct head placement and eye relief when looking through the rifle scope, impossible on the AR-15 with a straight mount. The Vortex Cantilevered AR-15 Scope Ring Mount is a one-piece construction that includes the Rifle Scope mount and two integrated rings with a 30mm diameter, capable of accepting a wide range of scopes. Vortex Optics has built the offset mount out of tough aluminum, and its light weight won't hinder the accuracy of your AR15. Properly mount your favorite rifle scope to an AR-15 flat top rifle using the Vortex Offset Cantilevered Rifle Scope Mount and Rings. Specifications for Vortex Sport Cantilever 30mm Rifle Scope Ring Mount: Manufacturer: Vortex Height: 1.59 in Fabric/Material: Aluminum Offset: 2 in Gun Make: AR Platform Color: Gray Tube Diameter: 30 mm Length: 5.89 in Ring Height: 1.59 in Weight: 6.7 oz Gun Model: AR-15 Width: 1.18 in Condition: New Finish: Matte Aluminum Weather Resistance: Yes Diameter: 30 mm Package Type: Box Ring Quantity: Single Gun Type: Rifle Features of Vortex Sport Cantilever 30mm Rifle Scope Ring Mount: Offset scope mount for effective rifle scope mounting to flat top AR-15 rifles by Vortex; Forward-oriented offset mount configuration allows proper head position and eye relief when using a scope on the AR-15; Cantilevered for ideal weight distribution and mount orientation; Designed for 30mm scopes and telescopic sights; Built from sturdy aluminum; Lightweight and efficient; One-piece construction with mount and two integrated rings; Backed by the Vortex Limited Lifetime Warranty against manufacturer's defects Package Contents: Vortex Sport Cantilever 30mm Rifle Scope Ring Mount Rubber Lens Covers Vortex VIP Warranty The Vortex VIP warranty is about you, not us. It's about taking care of you after the sale. VIP stands for a Very Important Promise to you, our customer. We will repair or replace your Vortex product in the event it becomes damaged or defective-at no charge to you. If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. You see, it doesn't matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all Vortex Optics Rifle Scopes, prism scopes, red dots, rangefinders, binoculars, spotting scopes, tripods, and monoculars. Unlimited Lifetime Warranty Fully transferable No warranty card to fill out No receipt needed to hang on to If you ever have a problem, no matter the cause, we promise to take care of you Note: The VIP Warranty does not cover loss, theft, deliberate damage or cosmetic damage that does not hinder the performance of the product.