In the 1960s, Thermold Magazines started off as a molded plastics injection manufacturer in the automotive industry. The owner, William Howard, a NC-native who was known for his creativity and numerous patents, enjoyed hunting big game as a side hobby. It was only a matter of time before he began trying to develop reliable firearms that would work great for hunting. Thermold replaced the metal that was popularly used in manufacturing guns with Zytel, a nylon resin, as a way to make the magazines more resistant to heat and corrosion. The magazines, which were quite reliable, became popular across the board with sport shooters, law enforcement, and more. At GunMagWarehouse, we carry many of these American-made Thermold magazines for you to choose from. Start shopping today to find great deals on these reliable Thermold products.