Firearms meeting the definition of a handgun under 431.2, which are certified by the curator of a municipal, state, or federal museum that exhibits firearms to be curios or relics of museum interest, may be accepted for mailing between governmental museums without regard to the restrictions provided for handguns in 432.21 through 432.24 and Exhibit 432.25.Firearms meeting the definition of a handgun under 431.2 and the definition of curios or relics under 27 CFR 478.11 may be mailed between curio and relic collectors only when those firearms also meet the definition of an antique firearm under 431.3.Handguns and other firearms capable of being concealed on the person are nonmailable unless mailed between the parties listed in this section, after the filing of an affidavit or statement described in 432.22 or 432.24, and are subject to the following: Except for shipments between licensed dealers, manufacturers, or importers, all regulated firearms must be mailed using a USPS product or Extra Service that provides tracking and signature capture at delivery.Mailable matter must be properly and securely packaged within the general packaging requirements in DMM 601.1-7.No markings of any kind that indicate the nature of the contents may be placed on the outside wrapper or container of any mailpiece containing firearms.Short-barreled rifles or shotguns that can be concealed on the person are nonmailable.
The Postal Service may require the mailer to open parcels containing firearms or air guns or give written certification that the weapon is unloaded and not concealable.1715, and all other all federal and state regulations and local ordinances affecting the movement of firearms. Mailers must comply with the Gun Control Act of 1968, all of the provisions of postal law in 18 U.S.C. USPS Marketing Mail Eligibility Decision Tree.Designing Letter and Reply Mail (PUB 25).