I recently had a 'smith put a Williams Fool-Proof receiver sight intended for the Win. model 1894 on my Armi San Marco mfg'd 1892 rifle. I also have an LSI Puma 1892, which I plan to do the same with. They work great! The Fool-Proof has click adjustable windage & elevation settings, whereas their 5D is not so "precise". BTW, I had him put a green fiber-optic front sight on, too. I like it! Red's available as well. Good Shooting! jd45