I just picked up a 712, and love it, and found out that they used to make a 3-gun model, the Practical. Naturally it was discontinued years ago, and the OEM manufacturer of the fore end and stock, ATI, also discontinued their support. I found an ATI T3 stock kit with a bunch of receiver adapters,
https://www.mountsplus.com/AR-15_Accessories/AR-15_Scope_Rings/118-ATI-B1X02007.html , and wanted to check and see if anyone here had already determined if the 712 was compatible with any other receivers stock adapters before plunking down ~$120 on a kit.
