Winchester SX3 question

[widowmaker84]

I have one of the new winchester sx3's and love it so far. The only question I have is about the bead. I don't know if it is threaded or not and I would like to replace the stock bead sight with a truglo. Any help would be greatly appreciated.

[johnch]

I beleive it is threaded .
If my memorey is right , it is a metric thread

My freind taped his out to a larger standard thread

Johnch