If the Carbine is MilSrp, you can still buy folding zytel stocks for them. With thirty rnd mags and the folding, that may be the best home defense rifle available. There are even hollowpoints and soft point rounds still available for the 30 cal.
I think of mine as a step up from the .357 lever rifle I owned ... those boating accidents right after selling the bulk of most of my weapons sure can devastate a collection.
It’s a great little HD weapon. I’ve got 2 thirty rounders and 5 fifteen rounders. It’s good to go.