So yeah it has an expanded tank which now includes the entire plunger tube, So increases by Approx 3 Times. Mainly to be used as a short ranged last resort shotgun its effectiveness was proven in the first war at which WinterStrike copped it in the chest pretty good. With a 1.5 meter barrel (I know stupid and useless) it can fire a heavy just over 230ft.
Shotgun ranges is about 30-45 ft with half inch steffans ( 9 of them) and is linked to a AS20 pump that hooks into my tact vest. Takes 7-8 pumps for shotgun spread but can safely go to 17 pumps which is crazy range. Have pushed it to 25 but blew out the back so not advised. My wall will agree.
Anyway bit of fun, hope you like it.
PS Arm blasters are the new Black, they'll catch on.