Dont disagree on the shortness benefit of a pistol. I just kinda question the functionality compared to a SBR. Seems like if a short AR15 is needed/desired a SBR is the best option. I suppose if you dont have $200, dont have time to wait, cant get approved, or dont want to register a NFA item, then a pistol makes sense?

There are many regular AR owners who fit into that category.

same can be said for long range custom rifles, 1911's, and on and on and on. I prefer a good looking, reliable, well made, functional AR.

Concealed carry bro! For when I don't feel like packing the .380!
Also none of that weak .223! 10in barreled .308! Who needs hearing anyway!

In all seriousness, they are cool but they kind of took a hit whenever the ability to shoulder them was taken away. That's why I am building an SBR.

1). Small
2). Light
3). Short range shots
Why lug around more weight then you need especially if you are spotting and stalking for 8-10 hours a night?

Yup

Because you have the right to and you can.

Well it would seam to me that it would offer the cheapest path to an SBR if someone is wanting to go that route - and allow you to play with it too. If you buy an SBR directly - you got nothing to play with while your Form is being processed. If you bought a rifle, then you are more than likely looking at buying a complete upper when you get your form - more $$$. If you buy a pistol AR, all you have to do is put on your carbine tube, buffer and stock and throw on your vertical grip of choice when the form comes in...the best reason for me though in such things (though I don't have a pistol AR15, I do have an MPX and a Z5P) - they are friggin fun! Not to mention anytime there is a group of people out there that thinks I shouldn't have something, that just makes me want it

You can take an AR pistol across state lines without the ATF's permission.

I see the purpose if you are planning on suppressing it. Makes for a really long gun when you have a 16 inch barrel and throw an 8 or 9 inch can on the end of it.