Quickshot Intruder

Name: Quickshot Intruder
Company: Quickshot

Has “trigger” and “thumb” buttons. The thumb button also has a lid, that you need to press a small blue button next to it in order to open it and be able to press it. It also has a switch for controlling the firing rate. FOR: NES, COMMODORE, MEGA DRIVE, PC

Thanks to George Panayiotou for scan and information