Arca length

[Flyjunky]

I'm going to be adding an arca rail to my rifle. Weight isn't that big of a concern but I'm looking at either the 4" or 6" rail from SRS. Is the 4" to limiting in terms of positioning? I don't want to go any longer than 6" on this gun.

 

[TradLife406]

I had the little mini SRS rail until I went full arca tard this year. For just mounting your tripod you really don't need a lot.

I only went full arca because I bought an arca bipod. So it was easier to just use a full length srs.