ATI Winchester 8 Shot Fluted Aluminum Mag Fits 12 Gauge Winchester 1200/1300 Shotguns

Holds an additional 3 – 2 ¾ inch shotgun shells. Constructed of Military Type III anodized, 6061 T6 aluminum. Minimum barrel length of 20 inches for 8 shot extension. Includes magazine spring. Easy installation. Ratchet base for tight fit. Manufactured in the USA. Fits 12 gauge Winchester1200/1300 shotguns.