"The rifle he used, a .223-caliber Bushmaster M4 carbine, was legal under Connecticut's 'assault weapon' ban, which is similar to the federal law that expired in 2004." This kind of gun is among ...

Adopted by the US military in 1994, the M4 carbine quickly became a battlefield icon. From its first deployment in Kosovo to its critical role in Afghanistan and Iraq, the M4 has proven itself as a ...