Tactical Johnny 3X Magnifier Scope Sight with Flip To Side 20mm Weaver Rail Mount for Red Dot Laser Sights, Quick Detach FTS 3X Magnifier with FTS Flip to Side QD Mount 20mm Rail, Flip up Sights Constructed of Durable Aluminum Alloy with Anodized Matte Black Finish Mountable on a Rail System Behind all Aimpoint or EOTech sights Diopter can be Adjusted with Wind and Eleveation Adjustment Screws Sold Exclusively by Tactical Johnny. All other sellers are selling COUNTERFEIT items