Ok....i got this Well mb-r8 semi/full auto airsoft gun. It jams alot, how can i keep it from jamming.?

Question

I use 2 different sized bb's for the gun to make my fps faster.

Answer 1

For starters, do not mix .12 and .20 gram bb's in the same magazine.

They feed at different rates and this can cause the jamming you describe. Beyond that, answer me this: "Have you been re-using your bb's?" Used bb's develop a barely noticable flat spot when they hit something solid. This flat spot causes them to not fit the barrel correctly any longer, and can also cause them to get stuck in the magazine and the tappet(feed)plate as well. Used bb's also pick up dirt and grime and deposit them in your tappet plate and your barrel. This can also cause jamming.