This force is already brenzwertig for the backstop or too much.
Inside, the paint chipped and dented the sheet completely.
Only about 50% of the balls bleben after the shot as intended also in the bullet trap, the other 50% jump up out or to lie directly behind the cardboard disc. Then they fall upon withdrawal of the disc to the ground and you can sweep.
For a "small" Airsoft gun certainly a class idea, however, unsuitable for CO2 weapons for my taste.
Therefore 3 stars - "Not bad" (but for my use maybe not good).