ahhhh. Sorry to the OP.
I bought a Colt RO635 on a LCW pistol lower and Hahn block from my local FFL for like $600.
One of his buddies sold me 3 new uzi 32 rounders for $30. I modified them and had an awesome running 9mm.
Sold the LCW lower for $200 (complete) when my Form1 came back.
Had $400 in the Colt upper at that point.
Sold it for about $600 later.

