What is the difference between LMT defender 2000 lower and the LMT lower.Some one told me to buy this lower.Any difference, or is only a new name to be sale more expensive.Any comments.Thanks

"Defender 2000" IS the LMT lower.  It is roll-marked on all of the LMT lowers (ones that aren't made for some other co.).  I found this out the other day when I was trying to find an LMT lower w/o the "Defender 2000" roll-mark (not exactly fond of that title myself).  When finances allow it, I'm going to get a full LMT "M4" (using the "Defender 2000" lower with LMT upper).  There are some good guys around here selling them if you're looking to pick one up.

Yes I'm looking for one can you tell me a couples of sites that i can ck. Thanks.