I love this thing!! I just finished shooting my 9mm carbine with it's new stock from ATI. I had to do a little shaving inside of the stock so that the action would cycle smoothly, but this gun shoots great and now looks great! It now looks very much like the Berreta that costs 3 times as much. For $69.95, this new stock should be on the 'to do' list of everyone who owns one of these carbines.
No real gunsmithing is necessary to replace the stocks. Very detailed instructions, with pictures, are included. It took me 30 minutes, 15 of those were spent shaving the rear of the inside of the compartment that the action fits into. It was well worth my time. The project looks great and I am very pleased with the results.