02-05-2020, 05:34 PM
from arfcom, in case you are not there or didnt see it
https://www.ar15.com/forums/ar-15/Barrel...18-743023/
https://www.ar15.com/forums/ar-15/Crooke...18-748246/
TLDR: barrel was offcenter, rail manufacturer (midwest ind) offered to look at it, determination was upper (spikes) needed lapping, they lapped it for him
https://www.ar15.com/forums/ar-15/Barrel...18-743023/
https://www.ar15.com/forums/ar-15/Crooke...18-748246/
TLDR: barrel was offcenter, rail manufacturer (midwest ind) offered to look at it, determination was upper (spikes) needed lapping, they lapped it for him

