Yes, sometime ago, I saw a thread depicting the same project.
Good idea ... even better would be a peep-sight like the type
mounted on the Daisy Model 25.
__________________
W. Edwards Deming ...
Quality: It is not enough to do-your-best;
you must know what-to-do, and ... then ... do-your-best.
Ever-Onward ... Through the Fog ---- Fort Stockton TX 79735