They are a lot bigger than they seem in the picture! - Atlas Bipods Atlas Bipod Quick Change, Cleat Feet, Pair 2

These puppies are like silver dollars with spikes. I thought they were going to be smaller but I was pleasantly surprised by their size. They are defiantly more rigid and applicable to different placement conditions than the standard spike feet. They pivot on a ball joint and always level themselves to whatever they contact applying all spiked edges into the ground. They work on concrete, dirt, rocks, grass, and everything. If you finally figured out the factory rubber feet suck, and realize you need something else, this is the one to get. Don't bother getting the spikes, these are way better. You will be happy you did.