Looking for one of those cheap bipods I see some of our troops using sometimes they latch onto the barrel. Look to be cheap in price they dont perminantly attach or screw on. Looking for a easy to mount/unmount bipod that would attach to the barrel because my current m4 setup doesnt have space for a rail mounted one. Just looking for something I can whip out of my pack and latch on for as long as I need it.

Sorry I should of been more specific and mentioned the vietnam era lol. But I did see one the other day on the history channel on the show tales of the gun. Using it on a nightvision testing range for that new pc integrated combat system.