Choate Tool Stoeger M3500/3000 +2 Shot Extension Matte 12 Gauge. This Magazine Extension from the experts at Choate Tool are designed for Stoeger M3500 and M3000 CZ 712 CZ 612 and Beretta 1301 Comp shotguns. Constructed with solid Matte blued steel the Choate M3500/3000 Shot Gun Magazine Extension will provide you with many years of reliable and efficient service. For a great way make sure you are using one of the best extensions the shooting industry has to offer choose the Choate Tool Stoeger M3500/3000 Magazine Extention. Specifications for Choate Tool Stoeger M3500/3000 Shot Magazine Extension: Manufacturer: Choate Tool Gun Make: Stoeger Condition: New Country of Origin: USA Features of Choate Tool Stoeger M3500/3000 Shot Magazine Extension Stoeger M3500 M3000 CZ 712 CZ 612 and Beretta 1301 Comp +4 shot extension (Matte) Package Contents: Choate Tool Stoeger M3500/3000 Shot Magazine Extension Choate Tool CMT-21-04-62: Stoeger M3500/3000 +2 Shot Extension Matte 12 Gauge