I won a set of plastic scouts on eBay, they where photographed as brand new on sprue, the seller asked if he could cut them off the sprues to make postage easier, I said that was fine.
Mixed in with the regular bolters, shottys,
CCW, pistols etc was this.
It is way, way before my time, I started with 3rd ed.
Is this an old Rogue Trader arm?