Winchester Model 1300, Defender 8-shot (20ga)
http://www.winchesterguns.com/products/catalog/historic-detail.asp?family=012C&offset=12&mid=512106


The Defender 8-Shot allows you to be prepared for any unseen obstacle that might come your way while in the backcountry. It's easy to pack and carry, and handles both buckshot and rifled slugs easily. The rugged Defender 8-Shot features an eight-shot magazine capacity, 18" cylinder bore barrel, non-glare metal surfaces and a lightweight composite stock and forearm. Choose from the full stock version with a removable front TRUGLO® fiber optic sight, the pistol grip model, or the combo version with both pistol grip and full stock included. The full stock model is available in both 12 and 20 gauge.