I don't remember how I know this little lock, or what it's called, but I'll try and explain it. It's more of a hand to hand combat move to get someone under control, but say you're doing it on their right arm, you get kind of a kimura/figure four grip on their wrist, with your right forearm under theirs and grab your left wrist, with your left hand on theirs and bending the wrist down. Their arm should also be under your right arm, you your back basically has to be turned to them, but when done right, you won't need to worry about them pulling anything sneaky. It's extremely painful. To see, just grab one of your hands with the other and push it down and try to touch your own wrist with that same hand. I probably made that very confusing, but for anyone who gets the idea, there ya go. And are wrist locks legal in most MMA fights or does that fall into the "small joint manipulation" category? Just wondering. Don't mean to sound dumb.

And if that's outlawed in Tri-State Cage Fighting (where I'll most likely get my start) then I'll be looking for the Sambo Ankle lock. I've somehow mastered that and can hit it from anywheres.