N/A Conversion kits & folding stock help

Hey all -

Went through Buck Rail and did the avenge x chassis upgrades (went from synthetic tube model. With the Leepers folding stock not being produced I went with a Law Tactical version (It was a knock off, but served its purpose. Easy peasy

Tried to do the same for Notos Ar conversion kit from Buck Rail - only problem is the folding stock is too close to the grip. Where can just a I find a simple 2” threaded spacer to go into the receiver? Or another option to not break the bank

Any help appreciated