I have a very nice condition Bushmaster Gwinn Armpistol in 5.56 for sale. Very rare!!! Not only are these things rare, this is the rarest model. 4 digit SN. Accepts standard AR mags.
It's fun to pull this one out of the safe and show it to you friends and rub it in that they dont have one.
Value is hard to gauge on these as they are so rare and so rarely sell. I'll take a stab and say $1500obo plus shipping to your FFL. I would also consider trading for a high level AK47.