I wish I had never bought my AO carbine. It was shooting fine, then not so fine, then seldom worked. And all this in 100 rounds, using several old and new magazines.
The bolt will not lock up while driving a cartridge into the chamber. I changed the recoil spring and it made no difference.
The hammer hits the back of the bolt but not in the slot that contains the back of the firing pin. This is because the bolt hasn't quite rotated into full lockup. I now have a bolt and hammer that have peened each other.
So it is going to go back and I will find out what the AO service is like.
But it has pretty wood.
“There’s a rattle in my glove box,
A Federal twelve-gauge slug.” – Adam Carroll in song Porter Wagoner