This is a Tikka T3/T3x FLUSH FIT 4-round magazine for rifles chambered in .223 Remington and .204 Ruger. Constructed from fiberglass-reinforced polymer, these single-stack 4-round magazines will fit flush in your rifle, maintaining its silhouette and making it easier to handle in the field. They're the perfect accessory for your new favorite rifle-and they'll keep you shooting for longer and longer. Tikka's T3 is the world standard for high performance, highly affordable bolt action rifles, performing well above its price point as a competition-ready, long-range ready rifle right out of the box. Just remember that not all Tikka magazines are created equally a | make sure you've got the right one for your rifle!