Excellent detailed guide, I would highly reccomend it to everyone that is an AR owner. It is very through. I didn't know how to take the firing pin out, now I know how to do it and it's easy to remember now. A++++
Pros: Detailed, laminated, all on a chain so it doesn't get lost
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.