Any firearm built of after market parts. Usually used to refer to AR-15's or 1911's/clones. Common practice for shooters who like to "roll their own" so to speak.
a: Dude sweet AR, what kind is it?
b: Its a Bushmaster lower, Olympic upper and a DPMS barrel.
a: So its a franken-gun?
b: Yeah.
b: Its a Bushmaster lower, Olympic upper and a DPMS barrel.
a: So its a franken-gun?
b: Yeah.
by budgieramone January 15, 2004
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