Hi guys, I have a friend who is currently looking to purchase an AR-type rifle or carbine in 5.56 at an affordable price. He has asked for my help in determining what make and model to go with. I am knowledgeable about firearms in general, but do not have much experience with AR's (I'm an AK guy). I am hoping that the vast knowledge and experience of the members of this forum can offer some guidance. The Specifics As stated above, he is looking for an AR-type rifle or carbine chambered in 5.56. He wants something that has MILSPEC internals or the compatibility to upgrade to MILSPEC in the near future. And, he wants to spend under $1000 (we are in central Ohio and from what I can tell prices around here are generally pretty reasonable compared to those in some of your locales). I am looking for recommendations with regard to make and model, optimal all around rifling twist rate, and the advantages/disadvantages of differing receiver top styles (i.e. A2 carry handle vs. flat top vs. other options), ideal barrel length for a general purpose short-to-mid range (25-300 yds) rifle/carbine, and anything else I may need to consider in terms of furniture/part/tool compatibility between variants. Any help you all can offer would be greatly appreciated.