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1.
C9
C9 LMG (Light Machine Gun), or C9A1, is the Canadian equivalent to the M249 SAW, with a few differences. It has no heat shield, a different butt with a butt grip, and the carrying handle is slightly different. It also has a picatinny rail mount with a 3.4x Optical sight on top. It is used as a section support weapon, there are two assigned per section.
Always perform a safety precaution on your C9 before you field strip it!!
by Brendan September 19, 2004
 
2.
c9
Short for Cloud Nine, or another name for the m249 LMG also known as the "SAW"
That thizz was hella strong, shit took me to c9 ya dig?
by Anonymous19451 May 02, 2011