Here is a rather different one I found on the web some time ago.
DPA 5" gun, but set up single action, like the PPC 9 but with a Bomar rear and a UGH! attached rail. #DPA 0442
The case says Singapore and S/A on it. Sold at Collectors firearms some time ago.
I bought several of the Bomar sights for the S/W guns from Dennys Speed shooter supply or something like that. When NRA rules changed to allow adjustable sights in service pistol event. Never had the guts to machine off the lip at the rear of the slide to put them on one of my guns.
Then discovered the Kensight DAS type sight that could be altered to fit the S/W cut , fully adjustable, great sight picture and didn't change the gun a bit. I like a tall front sight on my competition guns, so the Dawson fronts make me elevate the rear a bit more than is necessary if they were shorter.