Originally Posted by Icon0clast
Stock barrel is just a Dye UL with out the Dye stamp
No, it's not the same as a Dye UL or "Proto" UL, why would you even say that????
the stock proto barrel is a 1 piece 11" barrel which has a decent hone on it, and is a decent stock barrel.
See the above posts for a new barrel. the ans will not give you an improvement, neither will the CP. The only reason to upgrade at all is because you prefer a 14" or 16" etc, or want to match bore to paint size.