Many of the components presented here in Part 3 came out of my personal Pocket Survival Kit and require proficiency in their use to be even minimally effective.
One of the greatest aspects of the AR-15 is the ability to accessorize or upgrade the rifle. A lot of these upgrades can be done with a little gun-smithing.
Some of the information that has come out on survival is absolutely excellent, but there are always those who will put their own untested ideas out there.