I got lucky and sold the single barrel stock to a guy needing a stock. The stock was sold to me as a 20 gauge BHE stock. The seller (fuzzy) had gone so far as to remove wood from below the trigger guard and stamp a new serial number that matched a BHE double number. I found this guy to be most untrustworthy and would strongly recomend not dealing with him.
To remove a Parker gold grip cap there is a screw under the trigger guard. Turn it out a couple of turns and the cap comes right off. It simply engages a long pin.
bill