Navy Luger at the Range

[MikeP]

Looks to me like part of a "family day" event that are held by many military formations world wide. Usually include picnics and events for kids.
Range station possibly a field expedient structure just for the occasion.
I am presently at Clarksville Tenn for the annual 5th SFG reunion.
The active duty folks are hosting just such an event this week.
Today, in fact. Including a mass parachute event and a big picnic. A water drop this year.
Some pics from some past events.