I had a pair of lowers shipped to Adaptive Firing Solutions from Brownells. I chose AFS since it's close by (almost the same neighborhood) and the $20 background check. As mentioned in other reviews the single $20 BGC fee covers all transfers you are making through AFS. Freaking WOW!
Steve is a great guy and if you are looking for something give him a holler and he will see if he can beat the price you found elsewhere. I wish I had run across AFS sooner and will certainly be a repeat customer.