Buffalo River Harris Style Bipod with Swivel Adjustment
Adjustable legs from  9"-13" 
Legs are spring loaded and extend at the touch of a button.
Bi-pod can tilt (swivel) to left and right.
Easily connects to any standard stud common on fore-end and stocks on CZ, Marlin, Ruger, Remington, Sako, Cometa and Webley & Scott rifles.
Generally no modification required.
Leather pad on bi-pod to potect fore-end at point of connection.
Sling swivels can still be mounted (for shoulder sling connection) to bi-pod.
Design is based on original Harris bi-pod system