Here are mine..................so far.
Top to bottom:
Bricklee factory code /26\, long collar screwed barrel with factory scope and mount.
Navy Arms "Para" Carbine factory code , short collar screwed barrel without factory scope and mount.
KSI DP marked pinned barrel rifle built from parts.
Labanu M no factory code pinned barrel rifle built from parts.
BTC M factory code /016\ pinned barrel.
Navy Arms Type 84 factory code /116\ short collar screwed barrel all matching with serial numbered magazine.