ok ive decided after looking into using the 22 conversion kit to go with a dedicated upper in the m4 a2 style now for the big question  which one keuhles, kurts kustom or fulton armory  i dont have ciener kit so ill have to get one  fultn uses a 1x16 barrel and i think kurt uses a 1x12  does anyone have a opion on which is best or drawbacks to any of the uppers listed   thanks jim

You didn't mention what your requirements are.
Ciener is the only way to go for high capacity - 30 rounds.
I am not familiar with the Fulton armory setup.
I have a Kuehl barrel and like it a lot.  He makes a nice M4 setup.  Below is a pic of the barrel.  As you can see with the Kuehl setup, you don't use the chamber adapter - you have a true 22LR chamber.  I know KKF used to do this but most his setups still use the chamber adapter.  
http://home.cfl.rr.com/c3stuff/ciener/ciener-barrel.JPG

The pic below is of my setup with a Gemtech Hornet sound suppressor mounted.

http://home.cfl.rr.com/c3stuff/ciener/ciener_docter.jpg

DPMS has a new .22 dedicated upper that sounds like it will be awesome.  I have a couple on order, but lead times are 10+ weeks.

No Ceiner kit is needed, as it is a complete upper.  I believe it was 1x12 or 1x14.

anyone have a link to anyplace selling kuehl .22lr barrels/uppers?

Brownells sells a Keuhl's upper. The dedicated 22RF M4 style upper Kurt built for me used a 1:16, 22 RF bore barrel. Worked great and was very accurate.
Ed

Link for Kuehl's uppers/barrels:
[url]http://www.kuehlprecisionfirearms.com/[/url]
Also I was told that the DPMS uppers do not accept Ciener mags so if you get one you will be limited to 10 rounds if that is important to you.