Spitfire with the JB welded feed is on the bottom. Didn’t realize I had another in the same exact color until I started going through my stock class loaner crate.
The one that Tim at Paintball Tek dot Com repaired the feedneck on (top) came from Earon Carter. The other stock class spitfire (bottom) I bought from ebay and came from Hawaii about 5 years back.
The grip frame block on the second (top) was drilled for a screw to go through the 45 block (and hold the block steady). Probably replace it with a lonestar grip.