Definitions by LUEshi owns j00

MAC gun 

From the world of Halo, a MAC (Magnetic Accelerator Cannon) gun is one of the humans defenses, usually placed on ships or orbital defense stations. Basically, a MAC gun is a similiar, if not the same, to a rail gun, with its high power and velocity/

That MAC gun just ripped a hole through that Covenant flagship!

MAC gun by LUEshi owns j00 January 24, 2005