I just added them to the website. They are sold separately and don't come on the gun but make a great upgrade for any AR15.
$179.99 for the 12" and $189.99 for the 14". Here is a picture of one mounted on a gun.
http://www.theammosource.com/index.php?main_page=index&cPath=14_288_289&sort=20a&page=4
$179.99 for the 12" and $189.99 for the 14". Here is a picture of one mounted on a gun.
http://www.theammosource.com/index.php?main_page=index&cPath=14_288_289&sort=20a&page=4