bump for issues. My new gun's hop-up doesn't work, it's a little dial inside the dummy shell ejection (the charging handle opens it up so you can twist the thing inside). I try to turn it as hard as I can and it won't budge. It only moves left and right as if it isn't securely part of the gun. When I took off the handgaurd and opened the hop-up and tried to move it left and right again a BB fell out.