The Colt Python is an American-made double action revolver chambered in .357 Magnum. Several firearm collectors and writers have labelled the Python the finest production revolver ever made.
The Colt Python was first introduced in 1955 as Colt's top-of-the-line model and was originally intended to be a large-frame .38 Special target revolver. As a result, it features precision adjustable sights, a smooth trigger, solid construction, and extra metal. Pythons have a distinct appearance due to a full barrel underlug, ventilated rib and adjustable sights. Originally, Colt manufactured Pythons with hollow underlugs but left them solid to work as a stabilizing barrel weight. When the revolver is at full cock, just as the trigger is pressed, the cylinder locks up for the duration of the hammer strike. Other revolvers have a hint of looseness even at full-cock. The gap between the cylinder and forcing cone is very tight, further aiding accuracy and velocity. Starting in the 1970s each Python revolver was boresighted at the factory with a laser and was the first mass-produced revolver to do so.
In October 1999, Colt Manufacturing Co. announced the termination of its production of Python revolvers. In a 2000 follow-up letter to distributors, the company cited changing market conditions and the costs of defending lawsuits as the reasons for the discontinuation of the Python line as well as a number of other models. The Colt Custom Gun Shop continued making a limited number of Pythons on special order until 2005, when even this limited production was terminated.
In the extended Unrated Edition of Aliens vs. Predator: Requiem, Karl arms himself with a stainless Colt Python after encountering Wolf in the Gunnison, Colorado power station. When he is later killed by Wolf, Kelly goes to pick up Karl's Python, but stops when she realises doing so will make her a target of Wolf.