Building a 9mm AR (trigger/hammer question)

[BOSS302]

I'm going to build a 9mm AR15. I plan to assemble the lower and purchase a RRA 9mm upper. According to the website I can't use their match trigger but I have to use a 9mm hammer with their regular trigger group. Is there a way to get a match trigger or at least a lighter, cleaner breaking trigger for this set up without ramping the bolt?

[blazingangel01]

You need a new 9mm hammer, buffer, carrier, mag well convert block, the rest should be ok. Have fun and don't use a lot of force (as a gunsmith i know its hard) But if you need to take a break and most of all have fun with it and after your done.:ar15:

Look in to Bushmaster the best service i ever had.

[RifleGuy]

Look in to Bushmaster the best service i ever had.
I also have had positive experiences with Bushmaster in the past; they have been very helpful.