Another masterpiece!
I like that you're doing some with other weapons, as well; I suspect that when a lot of folks listen to news reports about "traffic in Small Arms," they think that it means only machine guns, mortars and military, select-fire rifles. Maybe old military bolt rifles, but not our snubbies. Maybe your Garand, but not my shotguns. We know they're wrong, and I like seeing her with her subgun; I bet she has fire extinguishers at home, too.
I agree with Standing Wolf: I suggest that you kill the comma after "Yet."
I also recommend changing "legitimate arms user" to "legitimate small arms user."
Recommend you delete the words, "state-sanctioned." The audience can see where he's from, and the words flow more smoothly. The simpler phrasing also brings forth a "Huh? But he's a Nazi! What do you mean?" from the reader. It draws the reader in toward the point you're making.
As always, this advice might be worth just what you paid for it.
{edited to add: and if you don't already have a poster with "All made possible by the State monopoly on firearms" as the caption, under the photo that Travis mentions (one or more Nazi soldiers pointing pistols at civilians' heads, at the edge of a mass grave), I think that's powerful. I ADMIT that I MIGHT BE DESCRIBING ONE OF YOUR EXISTING POSTERS here. I remember a bunch of them (how could I not?), but I don't remember them all}