I'm currently shooting a Del-Ton 16" M4 upper, and I think I'm due for a barrel upgrade at some point. I can confidentially say that I'm now shooting better than the barrel is capable of.
However, it does have a nice Daniel Defense FF rail and Battle-Comp on there that I would want to keep, and the upper receiver itself is still in great condition.
So–– Will Bravo Company rebarrel my upper for me with one of their barrels if I buy it and send them my upper receiver? [I don't have the tools to do it properly myself]. If so, how much would that run me?