The “recipients” looks delightfully surprised, BUT HOW.? They have to start the gun’s paperwork with the KNOWLEDGE AND FULL COOPERATION OF THE END USER.
MUCH more likely that this stuff is airsoft, or relatives of people who bought the gun for themselves.
Not universally true - it is possible to purchase a firearm as a bonafide gift with only the giver's info being on the 4473. Alternatively, the firearm could have been bought from an individual and in a state that does not require that type of transaction go through an FFL, i.e. no paperwork required.
Here in PA, it is legal for a firearm to be given to an immediate family member (who is not otherwise prohibited). So the buyer could fill out the paperwork and give it to his wife.
I look foward to the day we get the federal government out of the business of dictating personal behavior and customs.