AR Pistols now legal?
is this legal, too?
www.brownells.com
Here is a photo of the adapter on a pistol...
is this legal, too?

Law Tactical AR Folding Stock Adapter Gen 3-M
The first and only folding stock adapter compatible with all AR platform rifles. The Law Tactical Folding Stock Adapter works with direct impingement or gas piston systems and fits any A2, carbine, mil spec or commercial buffer tube and stock
www.lawtactical.com

Brownells - Serious about firearms
Brownells is the destination of choice for all your Law Tactical product needs.
Here is a photo of the adapter on a pistol...