This works well when you oil it. It will not work out of the box unless you oil the moving points. The .22 will hit it and the arms will not move. Once you give it some oil the arms flip over when you hit them. Keep a can of spray paint handy because the paint will come off fast. Paint one side one color and the other side another. Also make sure the screws that hold the two upright posts together are facing out, otherwise they will interfere with each other on the inside. I like that it does not have any springs or complicated parts that would break. I just works with gravity.
Pros: Works well. Durable. No springs.
Cons: They don't tell you to oil the moving points.
This review was written in the old system and had content requirements that are different than reviews written today.