I have the kolpin in the amazon link previously posted. Would buy a better kolpin model next time as the rear part is not attached with a hinge, can be a pain to remove and has to be stored somewhere once removed. I had to reinforce my brackets with extra steel welded on as they cracked/bent. My rifle stays much cleaner I’m this gun boot than on the claw type rack mounts though. After upgrading to a scope with additional turrets, the kolpin sock usually jams the gun inside the boot and it’s difficult to pull the rifle out in a hurry.