The first drum magazine for the Springfield Kuna is finally here, brought to you by ProMag! Constructed from a proprietary DuPont Zytel based polymer, this magazine remains lightweight while delivering superior durability. Inside, you'll find an injection-molded polymer follower and a heat-treated stainless steel spring that delivers reliability to match. Made right here in the USA, it's hard to beat this 50-round drum magazine from ProMag! Whether you're breaking in your new Kuna or you simply want to extend your range time, this drum mag is sure to please! These are sure to sell quickly, so grab one (or two) today!