Unknown Chinese Pistol

The Unknown Chinese Pistol (or Mystery Pistol in the game files) is a semi-automatic pistol found in the map Guilin Peaks. It is only obtainable after completing the Ancient Chinese Secret easter egg. After which, the player can obtain it through the Mystery Box.

Summary
Based on real-life pistols of unknown origins found in China, the Unknown Chinese Pistol is a rare weapon with a design similar to that of the Mauser C96 and Tokarev and some stats similar to that of the Python. It is very old but still very much useful on early rounds before weakening into a two shot kill by round 12.

Pack-A-Punch
When Pack-A-Punched it becomes the Nameless Warrior. It has double the damage, increase in max ammo capacity and range.

Trivia

 * The pistol is based on actual rare handmade pistols found in China believed to be made around 1920s or 1930s.