Got it fixed!!! thanyou for your help!

Yes it is getting stuck in the hop-up, how can I fix that?? Also, the barrel seems a little loose and I have tried to tighten it, is that normal and is that causing the issue?

My G&G GR15 raider shoots out bbs on semi and auto, however after about 5-10bb’s it stops shooting them out- still makes shooting sound and air comes out so it is working but the BB’s get stuck in the barrel. I un-jam them and then the same thing happens again.. Should I lubricate the barrel? What c...