Daewoo Precision Industry Ltd. patented a pistol in 1992 that became the K5/DP-51. SNT Motiv of South Korea produced it. Several companies marketed the K5/DP51 in the United States in the 1990s.
In 2011, it was reintroduced in America through a collaboration between Daewoo/SNT Motiv and Lionheart Industries as the LH9 Series. In 2016, Lionheart introduced a variant in 9mm Luger called the Regulus. It was not an import but was, instead, made in the USA.
This was when I first caught wind of this interesting pistol. The Regulus underwent several design, aesthetic, and cosmetic changes and evolved into what Lionheart is today calling the Vulcan 9.
athlonoutdoors.com
In 2011, it was reintroduced in America through a collaboration between Daewoo/SNT Motiv and Lionheart Industries as the LH9 Series. In 2016, Lionheart introduced a variant in 9mm Luger called the Regulus. It was not an import but was, instead, made in the USA.
This was when I first caught wind of this interesting pistol. The Regulus underwent several design, aesthetic, and cosmetic changes and evolved into what Lionheart is today calling the Vulcan 9.

The Lionheart Industries Vulcan 9 Offers a New Twist on an Older Design
A common question in firearms design is, “Why reinvent the wheel?” Many of today’s popular handguns are based on previous
