Nice game! I tried it after seeing your post on reddit.
It took a while for me to get how I lost my weapon, how long it survive, and I'm not yet sure how long each weapon stay with me.
It felt bad at first that mecanism of losing your weapon, but the further I went, the better it was, it would be totally without that. So, finally, good idea ^^.
I'm curious on what you'll implement next. And +1 for a reload, if people have hard time pressing the other button, they still can shoot bullets to auto reload.