Gun Groker? Northern Firearms?

[BigBronco]

Does anyone have any comments on this Gunbroker seller "Northern Firearms" ?
Their feed back seems good 4900 plus. Their prices seem too good to be true.
with the sellers not wanting to deal with PRK buyers they had no problem being willing to disassemble HI cap mags and ship them separately. Too good to be true? So I am wondering are they legit?

[nimbus]

I bought a sig p220 from them a few months ago. Great service and friendly over the phone. I bought a combat version and they even double checked to see if it was on the roster for me before I paid for it. I thought that little bit of extra service was cool of them.