"23587.2"^^ . . "0.249936"^^ . "XM312"@en . "0.1778"^^ . . "The XM312 is a heavy machine gun derived from the XM307 25 mm autocannon and chambered for the .50 BMG cartridge. It was designed in response to a request by the U.S. military for a replacement for the aging M2HB heavy machine gun, and as a complement to the heavier XM307 Advanced Crew Served Weapon. It is capable of being converted quickly into an XM307 with a small number of parts and a few minutes of work at the unit level (and vice versa from the XM307)."@en . "1.56007"^^ . . .