Need help with what pins to order

[Snohunt]

I ordered a saber package that came with a 3 pin apex sight. I want to add a few more pins. I think I can order these from Tru-glo however I do not know the size I need.

Can anyone tell me how I measure what size I need or what the standard size is to order for an apex sight?

Thanks!

[alex]

I've done this but can't find the package of the pins now, sorry. As far as i remember they were marked 0.29, but i'm not sure. You'd better go to a pro shop and ask there if nobody here helps you more then me.