Thermold AK-47 30 Round 7.62x39mm Magazines are tough and reliable in the field. The best thing about these magazines is the ability to resist dirt build-up and resists heat. Constructed out of nylon for great durability in the field to forgive a costly mistake like dropping it out of a stand. These non-corrosive and self lubricating magazines will keep feeding your rifle through the heat, cold, rain, or snow. The heavy duty construction does not have any exposed screws or springs.