I'm looking for a rail to slap onto my Aero M5 build.  It is a true M5, not M5E1.  My understanding is that these are DPMS high profile uppers and will accept any rail listed as such.  Being new to the large frame game, I'm still getting acclimated to the companies that produce quality stuff for AR10's.  My go-to for the AR15 is either Geissele, KAC, or Larue.  Who makes a good rail for the M5 system?

Here's what I'm looking for:
13"+ rail (18" BA heavy barrel)
Don't care about weight as this will be a bench type gun
Mlok preferred
Top rail is full picatinny

I've see the CMT Mod 1 and the SLR series of rails: opinions on those as well?

Thanks!

I have a slr its ok. you can use a aero just buy the barrel nut