I’m doing a trade at a local shop. He has a large selection of Parker’s and other doubles. I want a Parker that looks nice, is within my price range, and fits me. The only one I’ve “found” so far that meets those requirements has a single trigger. Just wondering how much it will cost to convert and if I can find someone to do it.

I had wanted to do a double trigger conversion on Uncle Bill's VH 16, but the sears would have to be straightened or replaced. Plus cosmetic work on the safety. I was given the gun by Bill's daughter. She retrieved it and a VH 20 from one of her sons after finding it without stock, floor plate screws, etc. I hope she finds the DHE 28 for me.

The trigger above that Harry shows is a Miller trigger.

A proper conversion from a Miller would require a lot of work to the trigger plate or replacement of the trigger plate entirely.

Regarding conversion from Parker Style SST to DT on Repro or original Parker, there are a number of things to consider and also a few different ways to approach to job. A minimalistic job can be done which would leave the trigger plate unaltered and will physically show evidence of the SST on the outside after the job is done. Or external evidence of this work can be removed entirely. The subject of the safety mechanism and stock head inletting can come into play depending on what the needs of the guns owner are. All these different factors effect the work involved and therefor the price one may expect to pay.

I have heard of some gunsmiths charging as low as $300 for a DT conversion on Parker Repros. from seeing the guns, I know that these are minimalistic jobs where no trigger plate modification is done and parts are simply swapped out or slightly modified. Beyond that, I cannot say for sure what they did inside. I suppose different people may have different ways to approach the problem.

I personally feel that with just the parts value and labor involved, $300 may be on the light side. But that is just how I feel.

Here is an example of a DT conversion that I did on a DHE 12g.

The original framework of the SST was gutted and reused. This was so that the original safety link toggle could be used. The safety toggle needed a block welded onto the end of it to reach the location of the new triggers. The framework also had to be modified in order to install a trigger return spring.
The frame was permanently attached to the trigger plate with the old screw and some tack welds.
The outside of the plate was then modified to remove all evidence of the SST ever having been there. L&R filled in, the long trigger slot filled as well as the two screw holes in the rear.
This frame will be color cased, so the surface work to the trigger pate is of no concern.

The other thing to consider is the stock dimensions as well with a DT conversion. Going to a DT will move the trigger finger forward. This particular gun had it's LOP effected by nearly 5/8".

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I have gotten use to the Miller trigger on the 16. There were more than a few surprises before I got the correct tension on the tang screws. About a month ago I found it a bad idea to change your mind on what barrel to shoot first. I pushed the safety forward to shoot the right barrel, changed my mind and pulled the safety to the rear for left barrel, decided I was right the first time and pushed the safety forward again to shoot the right barrel first and when I pulled the trigger both barrels let go. I did break the target. That or it entered into some kind of warp.