Sears offers the Stack-On Convertible Double Door Gun Cabinet in Green/Grey/Black, model no. GCDG-9216-DS, for $357.85. Coupon code "SEARS35OFF300" cuts that to $322.85. With $129.50 for shipping, that's the lowest total price we could find by $48. It features a reinforced steel door, 3-point locking system, and a 16-gun capacity.