Mr. Tom has recommended the Leapers, UTG, 2-7×32mm pistol scope. It has a red/green illuminated reticle with a bold black Duplex non-illuminated reticle.
It costs about $125.00 at Optics Planet. I was all set to buy one until my orders got screwed up by the Covid-19 mess.
I still want to get one, but am going to wait until I get the pistol back from DOC White, Bobby Hoyt, and Levi Reed.
My used Optima V2 pistol came in trade from Mtn Monkey with a Weaver, 2.5-8×28mm, Classic Handgun scope with a duplex reticle.
I bought the Warne, #M980/982M, steel, 2-pc, CVA-V2, scope bases, the Warne torque wrench, and the Warne #200LM,1", low, matte, steel, Q-D, lever, scope rings.
After the barrel comes back from Bobby Hoyt, I will have DOC White install the scope bases onto the barrel, and swap the rings over to the Weaver scope.
Then when it's time to clean the pistol, the scope is easily removed, with a guaranteed return to zero.