Originally Posted by Phil_Black
If the BB's are flying as far as they always do and that the fps is the same it's a pretty good sign that ther's no compression issue.
You will notice when it will happen.
Range will be affected and velocity.
Shimming is the correct space between the gears and the shell in the gear box.
Thanx alot bro ..i appreciate your answer ....i know NOTHING about the internals of my guns B=because they have never broke and i havent wanted to take them apart incase .i just took some heat for askin a question in the upgrades forum ....Man people just need to be civil and MAYBE we may have a few more players