Update: My Bullmaster has stopped working completely. I have it apart and working endlessly to repair it, but no success. Problems slowly started compiling until it never cycled a new round. I'll be lucky to have a single shot now. Probably just trash it.
Advice, do not buy! Technology is not there yet. Even when it was working at its highest level, during temperatures blow 55 I was never 100% sure I even had a round in it. Better just to buy a forward cocking lever repeater than a semi auto. This why all the major youtubers are not using semi autos: to many problems, Will spend all your time fixing it.