Do they ship with those sig arm braces or is there the option of the SBR stock?
The stock that these ship with are shown in the link to the site.
So why the 100$ difference with your competitors... what are we getting more?
... to ban guns because criminals use them is to tell the innocent and law-abiding that their rights and liberties depend not on their own conduct, but on the conduct of the guilty and the lawless, and that the law will permit them to have only such rights and liberties as the lawless will allow.... -- Jeff Snyder