Ballard sight.

[marlinman93]

That looks interesting.... I don't know of a Lyman 48 that is completely flat in the back to fit, however, a Lyman 56 just might.... I will do some digging to see if the hole spacing matches. Can you verify if the threads are 6-48?

Arent the Lyman sights for the Marlin and Winchester lever actions both flat on the back?

[Green Frog]

Wasn’t there a Lyman #66 sight specifically for flat sided actions (like most lever actions)? Unfortunately all of those Lyman sights are long out of production and getting harder by the day to acquire.

Froggie

[marlinman93]

Wasn’t there a Lyman #66 sight specifically for flat sided actions (like most lever actions)? Unfortunately all of those Lyman sights are long out of production and getting harder by the day to acquire.

Froggie

Yes, the 66A was for most of the Win. lever actions and the 66MB was for the Marlins. They also made the 48L for the Stevens 417, 417 1/2, 418, etc. that was flat sided. Not sure if those might not work too?
But as you say, they're all tough to find and expensive these days. A good machinist could take any of the 48, 57, or 66 sights made for round receivers like a bolt action, and mill them flat though. And those for bolt actions are far more common.

[BenTolson]

The Lyman 21 (manual windage) & 38 (adjustable windage) were the original flat side receiver sights. Lots of moving parts... They were nicknamed "climbin' Lyman's". Complete specimens can bring over $700+. Then the model 56 was introduced. It was all steel construction... had a large dial in the center to set the elevation. It was a simple, sturdy sight. Current values can run over $300. for Winchester versions. It was replaced by the 66... which started off as all steel but was soon changed to alloy. There in lies the issue... mounting an alloy sight on a steel receiver can cause alignment problems when the temperature changes.