Ok, my sons best friend purchase an ar 10 lower and built it himself, I have no idea what brand but I will try and find out.
He purchased an ar 10 upper, again idk what brand it’s just marked .308 on the barrel.
He fired it at the far about 20 times and it ran fine.
He showed it to my son because it looked really dirty, so they called me. I recommended cleaning it and lubing it because they said it was really dry.
They also said the bcg was hitting the back of the lower.
So they cleaned the outside of the bcg with my break cleaner and dunked it in Mobil 1 and let it drip dry, they added $2 worth of quarters behind the buffer spring and the bcg no longer bottled out and put it back together.
Immediately it started stovepiping. I told them to try it with the quarters removed, again stove piping and bottoming out hard so they put the quarters back in. The ran and got a lighter spring and buffer and have tried every combo they could
And it’s still stovepiping every round.
What should they try next?
What do you smarter at guys think is the problem?
And yes they say it’s all my fault.
He purchased an ar 10 upper, again idk what brand it’s just marked .308 on the barrel.
He fired it at the far about 20 times and it ran fine.
He showed it to my son because it looked really dirty, so they called me. I recommended cleaning it and lubing it because they said it was really dry.
They also said the bcg was hitting the back of the lower.
So they cleaned the outside of the bcg with my break cleaner and dunked it in Mobil 1 and let it drip dry, they added $2 worth of quarters behind the buffer spring and the bcg no longer bottled out and put it back together.
Immediately it started stovepiping. I told them to try it with the quarters removed, again stove piping and bottoming out hard so they put the quarters back in. The ran and got a lighter spring and buffer and have tried every combo they could
And it’s still stovepiping every round.
What should they try next?
What do you smarter at guys think is the problem?
And yes they say it’s all my fault.