SHOTGUN: TRISTAR ARMS MODEL COBRA IMPORTED BY TRISTAR, SERIAL NUMBER KRP008471, BLUE, CASE NOT INCLUDED, PUMP, 12 GAUGE, 18" Notes: TRISTAR ARMS COBRA, 12ga, 18" barrel, 5+1 The TriStar Arms Cobra is a semi-automatic shotgun designed for general sporting and recreational use. It features a practical, conventional shotgun configuration with a tubular magazine and semi-automatic action. Depending on the specific Cobra model, specifications such as gauge, barrel length, capacity, finish, and stock configuration may vary.