Umn actually I just copied this out of Guns & Ammo The book of Ar-15. If i see somthing that might help i post it...

Was just trying to be helpful... read it its the new edition you look at it at Walgreen’s an Barnes & Noble....

And they also said that many of the problems come from mags, since they were first designed to be one time use things....

Thanks for all that info ice pirate. Pluse one Q is it legal to use M16 parts like the bolt carreir and stuff in an AR-15?

I'm sorry about never having owned an M-16 but i do own an AR-15... this post was directed towards both since they are almost the same thing other than a few minor differences. No need to be hostile about it HunterCo... this post is supposed to help and with ice pirates info i think it will help many new comers to the ar-15 cause i remember i had many problems with my AR at first.