Marbels bullseye or spanish meter sight?

[will52100]

I've got a spanish meter sight ordered from Numrich gun parts, it's unfinished in the white, not the over buffed mess I've got on my Craperell NWMP.  I'm thinking of finishing it and adding it too my Uberti NWMP, either that or a Marbels bullseye sight.  I'm leaning toward the Marbels.  If I ever work up enough interest I may fix all the issues with the Craperell and use the spanish meter sight on it as a replacement.  Shame there out of bolts as that's one issue with it.  Not to mention I'd want to replace the wood.

Has anybody tried installing a Spanish meter sight on a Uberti?  I know I'd have to drill and tap.  The Marbels is pretty reasonable so I'll probably try it first.  Not to mention I'll have to do finish work on the spanish meter sight and blue it.