You'll notice I don't use the term "scout scope" as that's not what I do. I make long eye relief scope mounts for military bolt action rifles. The mounts I make don't require any modifications to the rifle.
The last few weeks I've been busy in the machineshop churning out some mounts for different rifles. This one I was anxious to try as the rifle itself is in excellent condition, all matching # made in 1892.
(I hope the large photo size isn't a problem)
This is the sliding anchor for the 1891 Argentine. This same method of anchoring would be used on the 1889 Belgian Mauser, 1890 Turkish Mauser, 1893 Spanish Mauser and 1895 Chilean Mauser. What makes the 1891 Argentine a little different and easier is the lacking of a handguard around or behind the rear sight.
This is the rear sight base "insert". In this case the insert actually straddles the rear sight base and protects it from damage.
I use a NcStar Marlin rail as its flat and has 4 holes already and is just a more expedient and economical method of making these mounts. The NcStar rail costs $5.60 each. Its held in place by three 8-36 sockethead cap screws, one 8-40 Weaver torx screw into the sliding anchor and two 1/8" steel dowel pins. Through the ladder ears is the original ladder pin that acts as the recoil shoulder.