[carguychris]

This is incorrect. Legally, one can purchase long guns from any FFL in a contiguous state. If you are not in a contiguous state, the firearm must be sent to an FFL holder in your state for receipt.

Uhhh, that's not how I understand it. Per 27 CFR Section 478.96:

Sec. 478.96 Out-of-State and mail order sales.

(a) The provisions of this section shall apply when a firearm is
purchased by or delivered to a person not otherwise prohibited by the
Act from purchasing or receiving it.

subsection (b) omitted, applies to in-state sales

(c)(1) A licensed importer, licensed manufacturer, or licensed
dealer may sell or deliver a rifle or shotgun, and a licensed collector
may sell or deliver a rifle or shotgun that is a curio or relic to a
nonlicensed resident of a State other than the State in which the
licensee's place of business is located if--
(i) The purchaser meets with the licensee in person at the
licensee's premises to accomplish the transfer, sale, and delivery of
the rifle or shotgun;
(ii) The licensed importer, licensed manufacturer, or licensed
dealer complies with the provisions of Sec. 478.102;
(iii) The purchaser furnishes to the licensed importer, licensed
manufacturer, or licensed dealer the firearms transaction record, Form
4473, required by Sec. 478.124; and
(iv) The sale, delivery, and receipt of the rifle or shotgun fully
comply with the legal conditions of sale in both such States.
(2) For purposes of paragraph (c) of this section, any licensed
manufacturer, licensed importer, or licensed dealer is presumed, in the
absence of evidence to the contrary, to have had actual knowledge of the
State laws and published ordinances of both such States.

(emphasis mine)

There's nothing in there saying whether the states are contiguous or not. "Meet the licensee in person at the licensee's premises" is the legal definition of a face-to-face sale.

Is there some other regulation I don't know about?