So far parts are as listed:
Magwell Extension from Springer Precision
140mm Mag Extension also from Springer Precision
Pirate backplate - somewhere on amazon
Trijicon Fiber optic sights- amazon
KKM Precision threaded barrel
Texas Black Rifle Company micro compensator
Just waiting on Apex to release the flat trigger and i can figure out who im going to use to cut the slide and coat it.