![](https://dickinsonarms.com/wp-content/uploads/2021/01/ERMOX_XPA-12BS.png)
Dickinson ERMOX XPA-12 shotgun is a combat dual-mode shotgun, adjustable for semi-automatic or pump-action operation. In semi-automatic mode a gas piston drives a bolt carrier; in pump-action mode the same components are driven by sliding the fore-end backwards. XPA-12 is fed by detachable box magazine as well.