This is a clever contraption compatible with air rifles that prevents the shooter from running back and forth to reset targets each time he has shot a set down. The plates on either sides of the trap are shot down and stick to a magnetic surface. The middle plate is shot last, and then mechanically resets the rest of the plates back up to its first position. From a distance of about 10 metres, you would need a rifle that shoots at least at a velocity of 650 feet per second for the plates to fall and are not recommended for pistols as they may not have sufficient knock-down power.
An Added benefit is that the shot pellets that splatter are collected in the trap preventing a mess.
It is recommended to use lead pellets only and not advised not to use hard copper-plated or steel-tip airgun pellets especially in powerful air rifles as this could badly damage the outer frame.