Champion Targets Rock Mount Pivot Extended BiPod 14-29.25 Inches 40453 is a pivoting bipod that lets you make the shot even on rough terrain. Theimage pivot on this Champion Bipod allows for uneven terrain sight adjustments. The Champion Rock Mount Bipod can be used at its shorter length for prone shots or shooting from a bench and at its fully extended 29" length for kneeling shots. Easily attached to sling swivel stud. Telescoping legs have spring return. Compact and lightweight. No assembly required.