|Classification: Semi-Automatic Pistol|
|Year Introduced: 1992|
|Country of Origin: South Korea|
|Created By: Park Tech Weapons|
|Caliber: .45 ACP|
The PTW Infinity is a sidearm developed by Park Tech Weapons, which has since been adapted for use by military forces and private security forces across the globe.
In the early 1990s Park Tech Weapons began developing long-barrel pistols, trusting their accuracy and power to win over customers who might be favoring compacts. The Infinity was based on the Colt M1911 but made in stainless steel, the barrel also reducing recoil.
A 1996 deal with Park Tech Weapons saw Triangle Security Services adopt PTW sidearms as standard issue for their security teams. While TSS specialists might use other weapons their stand-issue sidearms are the Infinity and the PTW Brotherhood.