comments:
The tool you need is here.Hollow Stainless Steel Lock... https://www.amazon.com/dp/B0FMJJ1MMX?ref=ppx_pop_mob_ap_share But taking the back off won't do you any good. You'll have to pick the lock and get it to turn before you can take it apart without extensive damage.You'll need a follower tool to put it back together. A AA battery should fit in a pinch. I managed to mess up my revolver which has 5 key pins, and 20 drivers plus 20 springs. It was interesting to get it sorted back out. If you can pick your lock and get it back to the opening, you can repin the key pins without disassembly. But if you think you messed up the drivers or springs, you'll need to completely disassemble it.
Hollow Stainless Steel Lock... https://www.amazon.com/dp/B0FMJJ1MMX?ref=ppx_pop_mob_ap_share
Amazon has them. Hollow Stainless Steel Lock... https://www.amazon.com/dp/B0FMJJ1MMX?ref=ppx_pop_mob_ap_share