Squad Automatic Weapon 

Aka Section Automatic Weapon or Squad Assault Weapon. A usually light or general purpose machine guns designed to give army personnel cover while advancing and also to help keep enemy forces from returning fire. Originally designed for increased mobility from the Heavy tripod mounted machine guns of the WWI era. They were designed as an individually portable, gas operated, magazine or disintegrating metallic link-belt fed light support weapon capable of delivering sustained automatic fire for periods of time which assault rifles could not support due to overheating and lack of accuracy.

The Canadian Soldiers were using their C9A2 Squad Automatic Weapon to suppress the Taliban insurgents.

Squad Automatic Weapon by Mike (PTE) October 30, 2008

armalite ar-10 carbine gas powered semi-automatic weapon 

The Narrator's weapon of choice.

If I were you, I'd be very careful who you show that to. Because the person that wrote that is dangerous. And you never know when this button-down Oxford cloth psycho might come to work with an armalite ar-10 carbine gas-powered semi-automatic weapon stocking from office to office pumping round after around into co-workers. It could be someone you've known for years. Someone very, very close to you.

armalite ar-10 carbine gas powered semi-automatic weapon by Silence November 9, 2003

squad automatic weapon 

a weapon in the military

the platoon was firing the wquad automatic weapon

squad automatic weapon by king November 12, 2003