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XM312Tài liệu tham khảo
WikiPedia: XM312 http://www.gdatp.com/products/Gun_Systems/XM37K50/... http://www.gdatp.com/products/PDFs/XM312.pdf http://www.youtube.com/watch?v=rBbjt3OZydg http://www.eucom.mil/english/FullStory.asp?art=725 http://www.vtc.vn/20nam/quocte/tintuc/6626/index.h...