I don't see a lot of these for sale right now, but this is the 20" upper that takes 9mm FX simunitions, kind of like a more dangerous version of paintball. It may also take other types of sim munition, but I'm really not familar with these. It's got honest wear and training use on it, including a bit of front sight cant, but overall appears to be complete and ready to mount on your complete lower.

I ship via PSA rules, and consider this to be a "barreled upper" for those purposes.

Prefer paypal but can do zelle or USPS MO. For trades I'm looking for the following:

CAPCO M16a2 upper
Pencil barrels in 20", 16", or similar
Wine-colored buffer
Various other a1/a2/retro stuff, whatya got?