Top Definition
A technology manufactured by Bushmaster Firearms International that is 40% stronger and 40% lighter than standard aircraft aluminum components.
I see death around the corner and I ain't scared
I got a carbon 15 and I'm fully prepared

Lord of mercy, 20 rounds in a clip
Outta line, get 20 rounds in ya hip
by Hax0r McGee September 10, 2006
Carbon 15 is a small arms assault rifle, manufactured by Bushmaster. Visit www.bushmaster.com for more information.
Shoulder Lean by Young Dro ft. T.I.
"Dro! im clean in dis bitch,
now im finna shoulder lean in dis bitch.
Nigga buck! carbon 15 in dis bitch"
by Spaghettihunt September 05, 2006
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