https://www.spas-12.com/
https://www.spas12.com/
I also have the SPAS-12. Mine has the J hook with the folding stock and the upgraded safety. Don't know about the magazine extension tube but the guys at the referenced websites probably do.
Best way to get the parts needed is to look on Gunbroker but be prepared to PAY.
Good luck in your search
https://www.spas12.com/
I also have the SPAS-12. Mine has the J hook with the folding stock and the upgraded safety. Don't know about the magazine extension tube but the guys at the referenced websites probably do.
Best way to get the parts needed is to look on Gunbroker but be prepared to PAY.
Good luck in your search