Since when is riveting mags to 10rd OK?

[thedrickel]

I read it this way:

(3)A [_____] is not readily modifiable to receive a detachable magazine if, for example:

(A) it does not have a magazine well;
(B) the magazine is fixed to the receiver by a continuous ribbon of welding around the perimeter of the magazine well, or by multiple ribbons of welding that are each at least one half inch in length;
(C) [_____] is fixed to the [_____] with a rivet (or other irreversible locking device) that is driven through the [_____] and fixed in place with epoxy; or
(D) the modification requires disassembly of the action.

And IMHO "not readily modifiable" ≠ "permanently altered", so I'm eagerly awaiting the support you mention