AR-15s

Mike, I bought one of these and I love it. I'm sure there will be opposing opinions, but for what I wanted it's perfect. It will fit in my backpack folded and you can run 30 round Glock mags in it. Anything out to 100 yards is pretty doable, I have hit steel at 200 yards but it takes some serious compensating, lol. Keltec's customer service is top notch too.

I was lucky to find one 2nd gen NIB in 9mm at a gun show for 360 bucks, I see they are substantially more now.

SUB2000 Rifle | Ergonomic | 9mm or .40 Caliber Rifle | KelTec

Let the poopooing begin, lol.

Keltec sucks!

I mean, they do, but their sub2000 is probably one of the things they got more right than wrong. Probably a really great and cheapish way to own a 9mm carbine.

Glock mags are probably the absolute worst thing anyone could want to run in a carbine, but at the same time it makes sense if you run glocks for handguns. But within the gun world "does it take glock mags" is a oft repeated comment used to disparage the unwashed masses that want all kinds of dumb guns that serve no real purpose (the sub2000 isn't one of them IMO, btw).

The better mags would be mp5 mags, or even greasegun and uzi mags for carbines - and most people could probably afford to buy 2-3 of them since these types of carbines are not fighting weapons anyway. They're range toys, or backpacking guns.

Personally, I'd be looking for a used Marlin camp carbine in 9mm. They're stupid simple, reliable, light, and every one I've ever shot could easily hit an apple sized target at 100 yards if the shooter wasn't brain damaged.