Which Upper for Megga lower

[btlsoom]

I am starting to build a .243 Win AR on a Megga Batten 308 lower.  Lower is ready  and I am looking for complete upper assy.  Which brands fit  ( I think all AR 10 would ) and who makes them?  Having a little trouble finding one.

[Alchase]

Following this, .243 would be a great AR round!

[carpsniperg2]

I am guessing you meant maten? I have dealt in a couple of them and they are great. I would match up a mega maten upper with your lower. They are spendy but great quality.

http://www.megaarms.com/maten/upper-receivers/megalithic-maten-upper/

[Alchase]

Here is one, though pretty spendy
http://www.apfarmory.com/apf-243-field-complete-upper/