ProMag Springfield Kuna 9mm 40rd Magazine

A 40rd stick magazine for the Springfield Kuna in 9mm. The straight body is a proprietary DuPont Zytel based polymer that resists impact and holds its shape in heat and cold, which matters more than usual on a magazine this long since flex is what causes a stack this tall to bind.

ProMag winds the spring from heat treated chrome silicon wire and pairs it with an injection molded follower, so the last rounds in the stack come up under the same pressure as the first. The round count suits range work, training classes and anything else where reloading less often is the point. Backed by a lifetime warranty against defects.