09-05-2015, 01:08 PM
/tg/ station and baystation shotguns do something like this if I recall. plus requiring you to load the shotgun shells manually. the neat thing about this is you could load different shells in sequence. load a lethal, stun, lethal, stun, lethal, stun for example will shoot out stun, then lethal in the reverse sequence like a real pump action shotgun.