[ARCHIVED THREAD] - BCG ?

Posted: 5/11/2008 5:03:28 PM EDT

I want to get a spare BCG, but the one I have that came with the rifle is supposed to be an LMT.I want to get something different. There's nothing wrong with the one I have , i just want to have options. It's marked/stamped MP and it also has two AA stamped on it .What is it?