In the summer of 1944 the German air ministry decided to produce a night fighter version of the AR 234 B-2 jet bomber, the Ar 234 B-2/N. A modified "Magirus" bomb was mounted on the underside of the fuselage together with two forward firing MG 151/20 guns and a rear facing place for the radio operator behind the 2nd fuel tank. The electronic equipment comprised one "Neptune" and one "Naxos" radar plus additional night flying equipment. By 2.12.1944 the first plane had been cleared for flying with full night fighter equipment and made its first flight on 10.12. By 2.12.1944 in Oranienburg two night fighter test units had been set up in parallel and the first revised version of the AR 234 B2/N was allocated to the "Bisping Special Commando". The trials by the unit that had in the meantime been renamed "Commando Bonow Ar 234" ended after a heavy bombardment of Oranienburg on 10th April 1945.