I am narrowing down rail choices and can't seem to find much feed back on this combo. I am looking specifically for opinions on the rail used with the carbine extension.
http://www.vikingtactics.com/images/JPHG-Ext-008.jpg
http://ar15tactical.net/handguards/V...nd%20Guard.png
http://demigodllc.com/photo/WC3G-200...1_0200_img.jpg
I really wish Troy would do something like this with their extreme rail system as I'm trying to keep the FSB.

