This Ruger Mark III 22/45 magazine contains up to 10-rounds of 22 LR ammo and can fit into the Ruger Mark III 22/45 and Mark III 22/45 Lite.Perfect for extending your range trips or helping you compete in rimfire matches this factory Ruger magazine is a consistent and reliable choice. Ruger 22/45 MKIII Magazine.22 LR Caliber10 Round CapacitySteel BodyThis magazine features a slick internal follower for uninterrupted feeding as well as a spring tension slider to enable easier loading.You can never have too many magazines especially for your 22 LR Ruger 22/45!Order your Ruger Mark III 22/45 magazines online here today!Searching for 22 LR ammunition? Shop our online selection of cheap .22 LR rimfire ammo from the top brands you trust