"This contradicts the existence of the 6.8mm SCAR A1 as the new US Joint Strike Force service rifle. The XM9 was abandoned by the game's developers, who felt the XM8 had been \"overused\" in becoming the staple next-gen American rifle in fiction. In the EndWar novel, Master Sgt. McAllen uses an XM9 with an XM322 underbarrel grenade launcher."@en . "XM9"@en . . "This contradicts the existence of the 6.8mm SCAR A1 as the new US Joint Strike Force service rifle. The XM9 was abandoned by the game's developers, who felt the XM8 had been \"overused\" in becoming the staple next-gen American rifle in fiction. In the EndWar novel, Master Sgt. McAllen uses an XM9 with an XM322 underbarrel grenade launcher."@en . . . .