Barrels are easy to change. Ive heard of Sprinta but never tried them. Youtube has plenty of videos on installing barrels.
Do you have a upper receiver vise block and a torque wrench?
I generally torque to 45 pounds on my builds, but depending on the barrel nut on the midwest you may have to go higher on the torque to line up the gas tube.
Does your barrel have a dimple on the bottom to help with aligning the gas block?
Lining up the gas block without a dimple can be a little harder.
