JINSE Bipod For Picatinny Rail Foldable Adjustable 6.5-7.5 Inches Bipod with Adapter High Tech Durable Aluminum Construction Rubberized Comfort Stand Center Height 6.5"-7.5" Bipod's legs fold up and retract when not in use Includes sling swivel stud adapter and Picatinny/Weaver adapter to allow it to mount Posi-Lock legs provide extremely solid, exceptionally accurate support