[Pants]

Originally Posted by kepp

http://site.cdnninvestments.com/CDNN2010-6/index.html

So from the guns on pages 6-7, which would you AR-philes choose? The Colt M4 comes with a free "quad rail". What is that?

The quad rail is the hand guard (over the barrel) that you can mount things on (like lasers, grips, flashlights, etc). That Colt has a regular hand guard, you can replace it with that quad rail you get for free.