Equipment Exchange

I got this in a trade and don't know much about this. Faxon  4.5" long barrel 1/10 twist. Daniel's Defense 4" rail. I'm not sure but think it's a KAK flash diverter. Never been fired but was mounted. I got it for the Colt upper receiver. It uses the standard DD wrench on the barrel nut, which is not included.
The last picture is what it looked like when assembled with the upper receiver and is not included. 250.00 shipped.

Discrete  Venmo, Zelle, PP, and Money Orders taken. If using Venmo or PP, it's F&F ONLY.

I work nights so please be patient for response.

Not looking for any trades or lowball offers.