Pump Action Shotgun import companies and pump action shotgun import trade opportunity

I’m currently working with a company purchase for pump action shotgun/cartridges

Does the ht109t have a barrel that coul be change beyween 20'' and 28''

I need a manufactureing SOURCE with US$ prices for single shot shotguns, 410ga 12ga Pump action shotguns 12ga tactical and hunting models, double barrel 12ga and 12ga over and under shotguns