The Boomstick

This creates a unique variant of the double barrel shottie, called The Boomstick. It sports a barrel choke for tighter grouping, higher damage, higher health, higher value, and a crit chance multiplier of 2x. When hitting a foe with a crit hit, it will blast them backwards several feet. To offset the frequency and knockback of the crit hits, the crit damage has been reduced. Find it somewhere in a worn Victorian house where a doting old man lives, harmless in ability... if not intentions. This also adds a new muzzle flash for The Boomstick, and also allows all double-barrel shotties to use Sawed-Off shotties for repairs.