I'm terrible at shooters but I had a lot of fun with this. Quick levels, easy restarts, felt good improving my times.
Took me a minute to understand how to even fire. Not sure what the point is of having the safety on, or what "Charge" is. Maybe it's for realism. I don't know anything about guns. Hitting the dummy cut-outs from certain angles was a little difficult because of how flat they are, but maybe that's by design. Would also be nice if your gun reloaded automatically when restarting.
Overall really enjoyed it, nice job!