Deluxe Picatinny & Swivel Stud Mount Foldable Bi-Pod features high tech durable aluminum construction. Clever picatinny and swivel stud mounting systems with a unique posi-lock feature to prevent tipping. Does not include rail. Leapers. Picatinny Mount Panning with Fully Adjustable Center Height From 9 to 11" Extendable Legs Foldable Arms Posi-Lock Feature to prevent tipping