Tippmann Arms Company Rifle Magazine, Full Size, Pinned, 22 LR, 15 Rounds, Black, Fits Tippmann Arms M4-22 A201045 The M4-22 15 Round Magazine is now available. With its easy load design and sliding outer Dust Cover" there isn't a better rimfire magazine on the market today. These magazines are built to last" black oxide plated steel feed ears eliminate wear from extreme use. Note - 15 round magazines are the same physical size as the 25 round magazine. Compatible only with the Tippmann Arms M4-22.