The Reynolds Boughton RB 44 is a multi-purpose 4x4 light utility truck with a 2.5 t payload. It was developed as a private venture. This truck was originally called the RB 510. It can be used for a variety of roles, such as troop carrier, shelter carrier, light artillery tractor, or anti-tank missile carrier. Development commenced in 1978. The RB 44 entered service with the British Army in 1989 and deliveries began in 1992. The initial order was for 1 000 vehicles, but the final figure was nearly double this. Production ceased in 1993. In 2010 it was announced that this utility vehicle was withdrawn from the British Army service.

   The RB 44 can accommodate various body types or shelters. A standard utility vehicle accommodates 12 troops in the rear cargo area. Vehicle has a standard three-seat cabin, however it can be converted to extended cabin in order to carry extra personnel and equipment. Vehicle can also tow trailers and light artillery pieces with a maximum weight of 2.2 t.

   This vehicle is available with three wheelbase lengths. The RB 44 is powered by a Perkins 110MT 4-liter diesel engine, developing 109 hp. Vehicle has a full-time all-wheel drive. This military truck uses a number of commercially available automotive components. A self-recovery winch can be added.

   Variants of the Reynolds Boughton RB 44 used by the British Army include general service cargo body, soft and hard top bodies and shelter carrier. The company also developed ambulance, command vehicle and recovery vehicle as a private venture, however these were not accepted to service.