Out of stock F Panzer Arms M4 Marine Grade Tactical Semi-Auto Shotgun 18.5" Barrel 12GA 3" 5 Rd, Piston Driven, Nickel Finish W/ Fixed Skeletonized Stock- PAM4MTSFSS $519.99 PAM4MTSFSS show more like this Calculated in Cart Classic Firearms Out of stock F Panzer Arms M4 Marine Tactical Nickel 12 GA 18.5" Barrel 5-Rounds $539.99 PAM4MTSFSS show more like this 9.99 GrabAGun.com Out of stock F PANZER ARMS M4 TACTICAL MARINE SGA 12GA 18.5IN BBL FLIP UP SIGHTS FIXED SKELETON STOCK 5RD $559.29 PAM4MTSFSS show more like this Free shipping over $400 (Excludes Ammo) Gman Sport