Berrys 61687 403 Ammo Box 38 Special,357 Mag 50rd Clear Lid w/Black Bottom Made in the USA, Berry's 403 50 round box is made from high impact polypropylene for increased strength against cracking, chipping, warping, expansion, or contraction. The box is stack able and features a stronger, flip-top design, allowing the securing of ammo storage with easy one-handed operation.