Panzer Arms +3 Magazine Extension For Panzer FS1 PRO Semi-Auto Folding F2 Shotgun

The Panzer Arms FS1 PRO +3 magazine extension is a purpose-built capacity upgrade designed for the FS1 PRO Semi-Auto Folding F2 shotgun. This extension increases magazine tube capacity by three rounds, providing added on-board ammunition for defensive use, competition, or extended range sessions. The design integrates cleanly with the shotgun, maintaining reliable feeding and consistent performance during operation.Supplied as a complete kit, the extension includes a replacement magazine tube an