I just did this mod and i'm seriously impressed with the smoothness of the dryfire cycling. But I have a question.
When I moving the gun around i heard a knocking sound. Coming from my marker. I checked alll the pushpins and screws and all were tight. I opened the back of my A-5 and I felt the rear bolt. I could move it from side to side with my finger. Not extreme movement but enough to be heard. Is this normal for home polished markers? I used the sandpaper method and I'm wondering if i took too much off!
Will this affect the performance of my marker?
See pix of before on the right and polished on the left:
