Ok so a while ago I was asking a question about a part in my hop up, and you guys said it was a bucking, but the one I saw didn't look like it. So I went on gi and they had a spacer, and in the picture it looked like the part I needed. So I ordered the spacer and it turns out it was a bucking. Well now I have an extra spacer if I ever need it. Sorry for doubting you guys. I've learned my lesson.