The world is full of interesting firearms. Some of them you find yourself examining and wondering just what purpose its supposed to serve. I get that alot with my SU-16c. Another kel-tec that gets that kind of attention is the Sub-2000.
Now... no question its ugly. Also... there is no question that there is a cool factor to it as well. But what's it for?
Something that I think is over looked in these pistol cartridge carbines is the fact that the 16-inch barrel cranks the velocity up significantly. For example if you have a sub-2000 in .40... the impact down range is not like the .40 out of your little glock. How much faster is it?
Its raining and crappy so I'm not pulling out the chrony but the charts say 135 grains bullet rolling out at 1635 fps. To put that in perspective... that is superior to the .357 magnum. Its even superior to the mighty 10mm. So not only is it going to be significantly more accurate than the same shot fired from a pistol, it will also hit far harder. And if you're shooting your carbine in 9mm, it cranks it up to .357 levels of power. And that's a big jump.
So it hits a lot harder than your standard sidearm in that same caliber... but its not much bigger than a pistol when it comes to sticking in a backpack, or under the seat in your truck. It also makes for a nice little kit gun. Get a pelican case... fold it up and stick it in there with a couple GMRS radios, a GPS, a good knife, a couple mags, and a pistol that uses the same mags as the carbine. Maybe a flashlight and some spare batteries... you've got a badass little go bag that wouldn't take up much room at all but would provide some serious functionality.
I prefer the SU-16 for my truck gun. I have a little more space available and I prefer the 223 and the AR mags. But in a survival situation.. a backwoods situation... or any time when space and weight are at a premium... i just don't see how you beat something like the Sub2000. Throw a strap and a flashlight on it and it makes a very nice little patrol carbine as well. Its fast, its really light, and you're going to have just about anyone you come up against outgunned. Remember... It may be a pistol caliber.. but it isn't hitting that way. Would I grab it over the SU-16 for a patrol? Well I suppose it would depend on how far I was walkin'.
And boy... a suppressor on one of these would sure be hell on some coyotes.
The down side is if you do pick up a Sub2000, be prepared to spend some time tuning it. People make all kinds of things out of these little weapons. Lots of folks hate the front sight and change it pretty quickly. I find the front sight isn't that bad if you take a little time to set it up... and a small flashlight mounted under it really helps that front sight a ton. I wouldn't put a red dot on it. That would prevent you from folding it up, and folding it up is one of the coolest things about it.