I just got my new M40-A1 and I think i am in love. I haven't had time to go shoot yet but maybe this weekend will be nice to me and allow me to go. Anyhoo, I took my new toy out of the safe today and decided that I would load it up and chamber a round. I noticed when I did that something in the handle began to rattle. When I took the magazine out with the round still chambered, it stopped. What gives? Anyone have any idea? The mags don't rattle when I take them out of the weapon. Any info will be grealty appreciated!!