Lion Gears M-Lok Low Profile Carbon Fiber Bipod Sling Stud/ Picatinny Rail Height Adjustable 9-13in Black. 3 oz Color: Black Attachment Type: Picatinny Gun Rail: Picatinny Features of Lion Gears M-Lok Low Profile Carbon Fiber Bipod Lightweight and Durable Carbon Fiber Legs Non slip Rubber Feet Low Profile Steel Mounting Base for Sling Stud Low Profile Steel Mounting Base for M-Lok Sling Stud and Picatinny Rail Package Contents: Lion Gears M-Lok Low Profile Carbon Fiber Bipod M-Lok Adaptor Picatinny Adaptor Lion Gears SPA-SH09CF: M-Lok Low Profile Carbon Fiber Bipod Sling Stud/ Picatinny Rail Height Adjustable 9-13in Black