The scale Lewis machine gun was a beaut on it's own.
I added the cord for the trigger mechanism.
Historically this was one problem the airman had to face,
that of changing a magazine in flight.
A rare but not unknown occurrence which required the pilot
to almost stand up in the cockpit to
get at the latching gear to pull the MG down,
change mags then push it back and
lock the weapon into place then back to business.

Rumour has it of certain occasions when some pilots didn't
bother pulling it down and just used changed the magazine
in situ so to speak by standing up almost on the seat.

Braver souls than I methinks.