This is the January 2007 cover of NRA's America's 1st Freedom magazine (which I get, as an NRA member). Over on dailykos and Wonkette they were talking about some apparent graphic novel with the same illustrations in it, and saying they are racist and terrible. I saw nothing wrong with those illustrations. *shrug*
Regardless, some questioned whether they are from the NRA. Well, they are at least affiliated with the NRA somewhat, obviously. The illustrator is credited as Chris Gall, and these illustrations are not used elsewhere in this issue, nor is the graphic novel mentioned, that I saw (though I didn't read the issue through, but just skimmed it).