Bloch MB.201 perhaps?
Let's see how good Biggles and Darkhorse are with
EDIT: After reading up on it, it appears more likely that this little scooter belonged to the RN. It's predecessor however was extensively used by RAF pilots during the second world war.
It's in a museum and not for sale.
This might become easier if you search for its predecessor first. A British portable scooter that could be airdropped in a small container (the same containers that can be seen in a bridge too far). It was used by British airborne troops, commando's and RAF crews in WW II.
It's on the other side.
It can hold 2 magazines, but only feeds from 1.