Quoted:
This is what I have, except mine is around a 2009 built...which I think are basically the same except the older ones use the SWAN rain.  I'm guessing the barrel and whatnot is the same.


"This Mark 12 Mod 0, ready to shoot 6.8mm upper is equipped with a 18.5" Douglas 416 stainless steel barrel 1-10 twist, M4 feed ramps with a fitted bolt and commercial carrier, flat-top receiver, PRi flip up front gas block front sight and rear sight, rifle length gas tube, a Gas Buster charging handle with big latch, and a OPS inc brake and collar. The system also comes with a Gen III Rifle length carbon fiber free float forearm in Black finish. This upper comes with a black barrel.  The upper comes with a 10 round magazine.  Please allow 5~10 days for assembly before ship date."


So I bought a Magpul MOE non-collapsible stock and a rifle length receiver extension for it.

What kind of spring and buffer do I need? still start with the rifle spring and rifle buffer Keep in mind it is a 6.8spc with a rifle length gas system, 18.5 inch barrel, and rifle length receiver extension.

It stated above it has a commercial carrier...is that the AR15 carrier and not the M16 carrier? yes, that is the lighter AR-15 carrier  I will have to look tonight, but I'm almost positive mine has the fully auto M16 carrier.

I was also wondering the price reduction...they were like 1999.00 and now without the SWAN rail (PRI uses their replacement for it) they are 1500.00 flat.  How much does a SWAN rail cost and its hard to believe that shaved 500.00 bucks off the price. since they only pop up once in awhile, $500 would not surprise me one bit

Thanks