This is my first AR-15 and I had never even shot or held one before. Anyways, the manual said to clean before shooting. The instructions were pretty extensive so I thought I would be fine. I had no problem taking it apart. I think I have identified my problem in reassembly. I put the bolt carrier in backwards. I feel stupid.....and I don't know how I can get the rifle apart. The bolt is stuck in the butt and the rifle will not come apart. Any ideas?