Ok, so I bought a complete lower awhile back that had a LAW tactical folding adapter on it. It was set up for a rifle and I wanted a pistol. So changed all that out and the BCG wouldn't seat all the way in. Learned it needed a spacer to seat in a pistol. Just added the spacer and the folder won't fold. Will it not fold w/ the spacer in it? Someone let me know before I really tear something up!!