Tippmann Arms M4 22LR 15 Round Pinned Rifle Magazine Black. With its easy load design and sliding outer Dust Cover there isnt 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. Specifications for Tippmann Arms M4 22LR 15 Round Pinned Rifle Magazine: Manufacturer: Tippmann Arms Color: Black Fabric/Material: Glass-Filled Nylon Magazine Capacity: 15 Round Caliber: .22 Long Rifle Gun Make: Tippmann Arms Gun Model: Tippmann Arms M4-22 Features of Tippmann Arms M4 22LR 15 Round Pinned Rifle Magazine Easy Loading Sliding Cover Package Contents: Tippmann Arms M4 22LR 15 Round Pinned Rifle Magazine What firearm models does the manufacturer say Tippmann Arms M4 22LR 15 Round Pinned Rifle Magazine is compatible with? The manufacturer suggests that Tippmann Arms M4 22LR 15 Round Pinned Rifle Magazine is compatible with Tippmann Arms M4-22Tippmann Arms A201045-15RD: M4 22LR 15 Round Pinned Rifle Magazine Black