You might want to study up on the rifles a little, Most SKS's and Garand's have fixed magazines... not detachable.
Although I wouldn't expect a gun grab to end there, the SKS and Garand are two of the most dependable surplus rifles out there... they would be way up on a "ban list" just because there are so many in circulation.
I’m not familiar with the SKS-type rifles; I was under the impression they had detachable magazines.
I’m pretty sure the enbloc 8-round clip for the Garand would be interpreted as a “detachable ammunition feeding device”.