What buffer tube for AR pistol? CAR?

AR/M4 AR Pistols & Pistol Caliber ARs
1

So I am wondering what distinguishes the buffer tube of an AR pistol from a carbine. Is it merely the lack of the holes for the buttstock positioner?

2

Mine is a CAR length and has no holes. There are some shorter pistol buffer tube set ups, but from what I’ve seen, they can create reliability problems.

3

Easy day.

Get a Spikes Carbine Pistol buffer tube or RRA. All standard same tube length w/o holes for stock etc.

I prefer the foam they offer as well, as I use it as a 3rd. POC (Point Of Contact) to shoot from.

Linky here:
http://www.spikestactical.com/z/index.php?main_page=product_info&cPath=0&products_id=69

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=235

4

Thanks!