They say you can, but Im always afraid to. Just aint worth the risk to me.I have a question? I have been shooting MX4's all year because most of the time I am in a pop up and shoot through the mesh. Can you shoot mechanicals through the mesh. I didn't figure you could since they deploy on impact. I just didn't know if it takes a certaing amount of force to deploy them or not. I haven't had any problem with the MX4's but I know my brother shoots the spit fire's and he loves them, but he hasn't shot out of the pop ups with the mesh up like I do. I have shot one from a lock on with the MX4's but my blood trail wasn't that great. The one's I have shot from the pop up have been so close they haven't gone far.