I am curious what kind of semi-auto shotguns are on the market that come with detachable (variable sized) mags. I know about the saiga 12, but have heard some complaints about reliability in the american versions. So I was wondering if there was anything else out there that could be more reliable and possibly american made. Or maybe the reviews on the saiga 12 were exaggerated and I will go with that. Just looking for some opinions and options. And this will definitely be considered a combat shotgun, so no worries about overly long barrels etc.