hi people i brought my first gun a few months ago a g&g gr15 raider xl gbb
ive noticed when chrono it when new was 368 now after a few months it dropped to 284 but not in one leap its been slowly dropping
ive had a 6.03 tb done with new bucking and nub rate of fire is 17 and im using a 9.6v nimh battery
1. what should i check to see if ive got a air leak
2i want to put a m110 spring in would the gearbox be ok to handle that
3.what else could i do to help improve everything
thank you for your help and please understand im new so might as more questions lol