CrispyB

Hi, I'm new to airsofting, but I'm the sort of person that likes to fiddle with how things work and make things better. I bought an Ares AM 008 and it was awful straight out of the box. No range and awful power. Turned out there was a tear in the standard bucking. I put an Asg M105 main spring in it with a bearing spring guide. I have also fitted an SHS Cnc hop unit with a Maple Leaf 60 degree bucking and omega nub. My question is that the new hop unit is so tight in the upper receiver (to the point that I need to use a flat blade screw driver to prise it back out). Should it be that tight or should there be a slight be of play? After all the spring on the inner barrel and the one on the front of the hop unit are doing nothing because of how tight the side tabs of the Cnc hop hold the unit in the upper receiver. Do I need to file any metal of the side tabs or not? Please help😬