HWS (Hartford) is a Japanese manufacturer of model guns and toy guns.

This manufacturer specializes in firing model guns and continues to reproduce the structure and appearance of guns as realistically as possible in its models.

They thoroughly research the markings and shapes of real guns, and are particularly renowned for their high level of accuracy in replicating revolvers and antique guns from the Western era. They are a manufacturer that often produces model guns based on historical and rare real guns, and they create highly sought-after models.

Typical models include the Colt SAA (Single Action Army) and the Colt M1877 Lightning.