As per Blackjack's comment, Leed's cannot sell firearms to civilians. However, they can and do sell almost everything else that is not strickly LE to civilians.
What Leed's does have is a ton of is magazines. After learning about Leed's on this forum, I cruised down there to check it out. It is in a building that used to be a bank. So I asked do you have any mags for a P2K 9mm (same mags as USPc 9mm. Yep! After years of being used to finding one or two mags at a time in the local shops, I asked how many do you have (Duh). Answer: at least a couple of hundred!!!!
Day in and day out the Puget Sound Area shop with the lowest prices is Federal Way Discount Guns. They are also one of the few authorized HK dealers in the state, so if they don't have it they will call HK and get it for you.
Mike