ive shot the 12ga and 410 versions of these shotguns and they KICK ASS.
they ARE illegal in kalif, considered AWs because they are shotguns with detachable mags.
the sights on the 12ga is a fully adjustable rail with a bead in front and a large U notch in back, the 410 is a smaller U notch with bead, no rail, windage adjust only.
the recoil on the 12ga is NOT bad, its a gas operated gun, so that helps soften it, a pump 12ga would be much worse, only bad part is the plastic buttplate.
on the 12ga version it takes some finesse to lock up a fully loaded mag, holding the bolt back and inserting mag makes it much easier, this problem i hear is being corrected on newer versions, the 410 model locks up like exactly like the regular AK, then rack the bolt.
the 410 bump fires like a Dream, VERY fun gun, although the one shot shoots a bit high, it has a kobra red dot sight on it to cure this.
i think they are great guns, its got nice AK quality and is a REAL Russian gun, take a look at one and decide if the trigger pull is bad and if sharp edges exist.
JPFO and Aaron Zelman -- wrote up a review recently on the 12ga version, dont have the link but i think its on there page
the 45-70 conversion on the 410 model is an OLD attempt which failed for some reason.