Excellent shape, 16" stainless barrel, set-screw muzzle brake, less than 2000 rounds, runs great.
Includes SOCOM block ($50 if you can find one)
and Brass-Loop mag loader ($50 or more, IF you can find one)
2-cut-down sten mags (hold 17-18 rounds, easier to use from bench or prone)
$500 plus shipping, no trades.
pic of the upper on a lower....