SV Infinity question

[EMT-i]

Hello all,
Have a question for anyone who can help. Working on adding a metal side upgrade for a WA SV Infinity 5 inch, the slide is a shooters design SHPD aluminum piece from DEN Trinity, had to machine it myself to make all the internals fit. What I need assistance with is the rear sight, the slide wont accept my bomar sights or my novak off my Infinity 4.3. Done some browsing and cant find much about those SHPD slides. Any help would be greatly appreciated, thanks
Henry

Here is the link for the SHPD slide for a visual
http://www.dentrinityshop.com/pr_details.jsp?pid=9890