The short answer is that's it's JUNK!
What did you trade away, that's the first thing.
People will say the BWA, BWB, BWC, BWD serial number prefix were good, that's been proven false
I've owned a half dozen or so of the B-west made in USA chinese AK's
The receiver will ultimately fail near the trigger pin holes and potentially the trunnion rivet holes.
It's a crapshoot on when the trigger pin holes will oval out, could be 500rds, could be 1,500...pure crapshoot.
The rule of thumb when it comes to the US made B-west guns, treat and value it as a parts kit.
You will have replace the receiver at some point.
^^^^^^Speaking from first hand experience^^^^^
If you took the trade expecting a working gun that will last you got hosed and should trade back as long as what you traded was decent.