Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Default sorting View: 26 52 All Quick View Out of Stock Quick View Winchester 1200/1300 12ga SGWinchester 1200/1300 12ga. Slide Arm Extension $35.00 This is a Winchester 1200/1300 12ga. Slide Arm Extension. The tube measures 6 & 1/4 inches long. It is in great working condition.Read more