I was able to buy a Stoeger M3000 freedom defense shotgun, which is something I had been looking for now for a while, at a normal price. Does anyone know if the stock interface is compatible with any other shotguns? I would like to get an adjustable stock, maybe something with an AR style tube and pistol grip if possible.

Thanks.

MOA Precision makes an adapter that will accept the Magpul stock, that the only thing I am aware of for the Stoeger. https://moaprecisionllc.com/product/new-adapter-system-for-magpul-sga-stock/