I was looking at the KA Bipods on a web site...and there are two variations: The spring eject - bipod flies open.
Gun control is not Crime control.
I would think the spring eject would be more useful because if you see someone and want to put down the bipod really fast to get a good shot at the person before they get away. The bipod ejecting is just alot cooler too 8)
If Im not mistaken the King Arms spring ejection sysem does not open the bipod. It simply ejects the legs(making them longer) or retracts them(making it easier to close up). As far as I know, they still unfold like a regular bipod.
In close range combat, an unsuspecting melon will get the back of its melon blown off.