The saddle ring will unscrew. Rotate the ring so the joint is away from the stud, put a decent size crescent wrench on it, like a 12", and it will come off. I removed the ring and stud from my 86 carbine. They don't serve any useful purpose unless you plan on carrying it with a cavalry sling across the body, like in the 1850's thru 80's. I made a filler screw from a metric allen set screw, filed flat on the non-allen head end, grooved for slot, and cold blued. I didnt take it off because of the sight, I simply don't like them.
Someone said the Lyman 21/38's used standard holes, that's not the case, two holes have to be drilled and tapped, at least on all the Winchesters I've seen. I have seen some with saddle rings and yman 21/38's, but there isnt really any reason to keep the ring unless you just like the way it looks. It's simple to drill and tap for common receiver sights.
Hope your guy can get the wood butchery squared away. Nice carbine otherwise. I believe the originals that had slings had a front sling mount integral with the fore end band. It's fairly simply to drill the band. I used to tap them for a stud, but went to drilling thru the band, and inletting the small knurled nut in the wood under the band, it gives much better thread area for the stud. I grind the nut to the inside contour of the band also. A small flat filed on the band gives some room for indexing to square.
The Williams sight that fits the 95's should be the 71-something model, made for the Winchester or Browning 71's. If you can afford them, or can wait to find a resonably priced one, the old Lyman No 56 receiver sights look old timey, work very well, and are all steel.
Lyman 56 on a Browning 86 carbine. Also shows the filler screw for the saddle ring hole.
