Use Coupon Code SG3936 at Checkout and receive a free ammo can of equal or lesser value when you purchase select Used U.S. Military Surplus Ammo Cans. Customer must add the free item to Shopping Cart during Checkout. One coupon redemption per customer. Cannot be combined with any other special offers or coupons and cannot be redeemed for cash. Hurry, limited time offer! Expires May 14, 2019.