UTG 3x Magnifier w/ Flip-to-Side QD Mount - W/E Adjustable Freak XL Barrels & Inserts it comes with one

it comes with one

Dimensions: 170mm x 130mm

Feedneck Adapter (Black)

689" Insert And Rubber Grip

Precision Rifling Bore

UTG 3x Magnifier w/ Flip-to-Side QD Mount - W/E Adjustable Freak XL Barrels & Inserts it comes with oneBroadband Multi coated Lens to Provide Crystal Clear 3X Image Wide Field of View 30% Bigger Than Comparable Models from Other Brands Windage Elevation Adjustability for Optimum View Centering Innovative Flip to Side Mechanism for Quick Transition between 1X and 3X Image Adjustable Eyepiece for Easy Dioptric Correction Precision Machining and Anodizing for Maximum Strength and Wear Resistance Patented Quick detach Lever Lock Mounting Base 42mm Center