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![m4a1, m16a1, dinergate, m4a1, m4 sopmod ii jr, and 1 more (girls' frontline) drawn by akino_1713](https://cdn.donmai.us/sample/cb/f3/sample-cbf3d2c52f966d0a2ba387add89d175e.jpg)
Artist's commentary
四周年おめでとう!
四周年おめでとう!
M4へ:
四周年おめでとう、M4
四年間、あっという間なものだね。
今の君はきっと旅を続けているだろう。
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