The U.S. Army is bringing in the really, really big guns. Regular units will soon be issued a Swedish-built "recoilless" rifle that can fire an 84-mm. projectile nearly a mile and has the power to take out a tank. The 15-pound guns, which soldiers hold just above the shoulder to fire, were previously only issued to Special Forces. But after soldiers in Afghanistan repeatedly complained that insurgents were wise to the limitations of their M-16 rifles, the Pentagon has decided to make the Swedish-made Multi-Role Anti-Armor Anti-Personnel Weapon System (MAAWS)-- or the M3 Carl Gustaf for short-- standard issue.