I"ve owned this marker for about 5 years and never shot it! So it needs to go. Unsure of how well it works as when purchased it required HPA which was pretty hard to come across. It can only run on HPA. Comes with a Halo hopper that isn't really usable in the field (take it if you want it). The trigger has a small crack on it which I have taped up. It can fire a max of 25bps in semi-auto bursts.