This is the PTR Archon Type B 9mm 18-round magazine. 

Maximize your Archon Type B’s capacity with this factory 18-round magazine! 

Don’t settle for fewer rounds when you can have 18+1 ready to go. To help keep track of your remaining rounds you’ll find side-facing numbered witness holes for quick and easy capacity checks. 

Thanks to its durable steel construction and anti-tilt polymer follower, it delivers superior durability and reliability as well. Whether you’re carrying your Archon Type B or using it for competition, this 18-round magazine is ready to handle the task at hand. 

Throw a couple of these factory 18-round magazines in your cart before you forget!