Primos Hunting Primos Trigger Stick Medium 21.50in-40in Black Spartan Precision Magnetic Attachment System. Each bipod comes with a quick detach gun mount that clamps to the sling swivel stud of bolt action rifles with a conventional stock design or a picatinny rail on a modern sporting firearm. So carrying your firearm with a sling or shooting off hand is not impeded. The integrated Spartan Magnetic Attachment System allows shooters to connect their bipods quickly and efficiently to their guns for fast and accurate shots. Like every Trigger Stick Primos Gun Mounted Bipods adjust to your desired height with just one hand and the squeeze of the patented trigger. The Primos Trigger Stick Gun Mounted Bipods are the ultimate solution for making your shot accurate no matter where you are. Specifications for Primos Hunting Trigger Stick: Manufacturer: Primos Hunting Color: Black Fabric/Material: Steel Attachment Type: Magnetic Package Contents: Primos Hunting Trigger Stick Primos Hunting 65829: Primos 65829 Trigger Stick Medium 21.50in-40in Black Spartan Precision Magnetic Attachment System