I would like to do some cowboy silhouette shooting with my Marlin 39. I'm adding a Williams Foolproof rear peep to it. For front sight, I'm going with a Lyman 17A but which sight height do I need? In Brownells I see the heights as .465", .494", .584" and .854". I would be getting a set of Lee Shaver inserts also.

Which front sight height should I go with? Lowest?

I think I went with the 494" height Lyman. I used the William Rear and it had PLENTY of adjustment.
I also used the Shafer Inserts, but to be legal(NRA rules) you can only use a post front insert.

Also, go ahead and get the merrit adj appature.

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slightly taller.

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Sincerely,

Hobie

Bryan:

I think you can buy them from Merit directly.

https://www.meritcorporation.com/

I dealt with them a few years ago. They are nice folks.