For Christmas bought a Stevens M35 for daughter's BF. Nice rifle, preliminary testing I can hit sub 1in target at 20yds.

But he really really wants extra mag for it. I explained it is not customary to do fast mag swaps in these type of rifles, but to no avail. Daughter and wife are joining in.

So, which magazine ? I know this rifle has a better known Savage counterpart, which one is it ?

In case there are multiple Stevens M35 , this is the relatively modern .22lr bolt action, clip fed.