Tapping/threading for dual detents?

[Severe]

I did a search and either I didn't find the majic word or it's simply not out there. Anyhow, I'm looking for someone who can tap and thread my Tac One for duel detents.

I'm in NC so closer to home is better and I need an idea of total cost.

Thanks!

[RogueFactor]

http://www.lukescustoms.com/page0027.htm

[Severe]

Thank you RogueFactor. That is exactly what I was looking for!