havok

I'm going to sell the Lar-8 and get the Dpms gen II recon. After consideration, I'm going to keep the Lar-8 but thanks for all your info.

ok, will the barrel from the rra lar-8 mate to the ma-ten upper?

I own a Rock River Lar-8 but I want to change the upper and lower because I don't like the rra lower. Will the mega maten billet upper and lower except the internals from the rra lower and will the maten except the bolt carrier from the rra upper? Thanks for the help