Sport Ridge Heavy Duty Bi-pod Adjustable 9in.-13in. Matte Black. All sizes feature reinforced tension springs for reliable height adjustments precision tension leg locks as well as spring assisted leg retraction for fast and easy portability. Make sure you have the perfect TAC SHIELD bipod in your accessories collection. All TAC SHIELD Standard Bi-pods have swivel stud or adapter adjustments and have a hardened durable matte black finish. Tac Shield T9501A: Heavy Duty Bi-pod Adjustable 6in.-9in. Matte Black Tac Shield T9502A: Heavy Duty Bi-pod Adjustable 9in.-13in. Matte Black Tac Shield T9503A: Heavy Duty Bi-pod Adjustable 13in.-21in. Matte Black Package Contents: Tac Shield Heavy Duty BiPod Adjustable Sport Ridge T9502A: Heavy Duty Bi-pod Adjustable 9in.-13in. Matte Black