open front sight for my r9-where do I find one?

[barcabarca]

I'd love to get a decent open sight system for my r9.  Any idea where?  I'd like to have some various inserts and a rear peep sight, but I don't want to spend 300 bux.. It's a tough economy and my air rifle obsession is feeling the bite... the front site in the picture is from a D34 and it doesn't fit right at all...

thanks,

[Mark 611]

calibrex or something like is the name of them on the net sells sights with incerts for these guns and their very reasonable on their price!