I got one of these for my buddy to use, and Its a good hopper for $50. Nice and light and it keeps right up with his response on his 98 custom. Obviously not as good as a Halo etc etc. but good for semi-fast woodsball guns. I dont know how it would do in the rain prolly not to well. The batery effiency was really good. Overall Tippmann made a nice quality hopper.