This is the ProMag Springfield Armory Kuna 9mm 40-round extended magazine.

The first extended aftermarket 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 chrome silicone wire spring that deliver reliability to match. 

Made right here in the USA, it’s hard to beat this 40-round aftermarket magazine from ProMag! From the range to home defense, this magazine will have your back. 

These extended magazines for the Kuna are sure to sell quickly – grab a few while you can!