J&T is the commercial name for DoubleStar. Now I know some may crap on them, but they are mil-spec just like everyone else, and make a good product to start from. Their rifle kits are competitively priced, and they offer military and leo discounts.

I ordered my M4 kit with a couple of upgrades to the kit on 12/30. I was surprised to receive my kit yesterday, 1/13! Two weeks?! I was amazed how fast they were. Everything looks good, and all the parts are there. Now I can't wait to get it built!