The Umarex Komplete NCR is the definitive stand-alone PCP air rifle. In .22 caliber the Komplete uses a 10-shot auto-indexing rotary magazine. While the rifle does come with 2 magazines there's no reason why you shouldn't stock up with more and this 2-pack is the right way to do that! This magazine is like the original super easy to load. Just insert the first pellet in through the loading port and rotate the magazine wheel around to the next open magazine slot. Keep loading until all 10 mag chambers have a .22 airgun pellet inside.