Does KTP report the sale to Mass, is that why you have to do the EFA-10
You have to do the FA-10 because that's a MA law that says 7 days within buying a long gun out of state and you now owning it in MA, that you have to register in your name.
You don't have to register where you got it from.....just hit register, fill out the firearm data and submit.
KTP would report nothing to MA.....they could care less what you do, and there is nothing that says they have to report that I know of.
That said........You do a 4473 there though when purchasing, like any other gun...and with the Biden ATF who knows what they report to MA. I don't know if the ATF out of Boston covers southern Maine or not. If they are out of Boston....well....for sure they know about ME to MA transactions, as they audit the bound book or whatever approved document KTP uses to record transactions.
I've done many transactions there over the years and sales tax is always more than covered by a gift card if you pay for the gun at the store.
Online...not sure. I did buy a gun online one time at a 15% off flash sale and they didn't want to cover the tax cause it was online sale, and technically I had paid the tax already. I argued a bit (15% off really shouldnt have, saved alot on the gun) and they looked at my customer data and said...he's a good customer give it to him. YMMV with that.
They have top notch customer service.....it wasn't always that way for a while...and I got my share of Ma**h*** hate there before, mainly just when looking at guns and being ignored, but that has seemed to have gone away with as much as I hate the deli ticket system, it seems to be working. I'm not blaming them either, they tend to get a lot of rude MA/NY/CT city slicker a**h***s there and Im sure they get tired of dealing with them.
As a rule, I keep about a 500 dollar gift card and I just put a hold on the gun now, and go look at it, and if you don't like it they will credit the gift card back. Or I then will buy it there and they give you a card for the tax.