Take the hopup out of the barrel. You will then see the black screws on the outside of the chamber. They are the big black screws. Just tighten it one turn and then reinstall and test. You may need to tighten more but just to one turn at a time and then retest.Hello 1 tonne,
Could you please be of assistance? You seem quite knowledgeable .
I just installed a AA hop and chamber into a bar-10 but I am now having a jamming issue every few minutes. I take the magazine out to clear the chamber a two or three bb's fall out.
After searching I found the problem may be the bb stoppers and the solution is to tighten them.
How do you do this?