06-06-2021, 08:59 PM
Building a accurate upper starts with the barrel.
As to the upper, sqaure the reciver face and start installing parts. When it comes time to install the gas block and tube, flip the upper upside down with the bcg fully seated, that will help you feel that the gas tube is lined up properly and not have a binding issue when the bcg is moving.
Keep the torque on the gas block and muzzle device as low as possible, red loctite and a accuwasher is best, skip the crush washer junk.
The barrel. Lijia are any thing from PF will give you the accuracy you want, everything else is rack grade and a 50/50 it will shoot or be crap.
Doesnt take expensive tools too build a upper either.
As to the upper, sqaure the reciver face and start installing parts. When it comes time to install the gas block and tube, flip the upper upside down with the bcg fully seated, that will help you feel that the gas tube is lined up properly and not have a binding issue when the bcg is moving.
Keep the torque on the gas block and muzzle device as low as possible, red loctite and a accuwasher is best, skip the crush washer junk.
The barrel. Lijia are any thing from PF will give you the accuracy you want, everything else is rack grade and a 50/50 it will shoot or be crap.
Doesnt take expensive tools too build a upper either.