The Contractor is a compact pistol with good handling but low base damage. Stats-wise, it is best comparable to the LEO or Chimano Custom, being a middling firearm that, while not excelling in any particular field, is rather well-rounded and easy to use.
Overall, the Contractor functions well as a close-to-mid range backup weapon, where its low damage is not that much an issue due to its ability to land many accurate hits in a small span of time.
The item is the decorative front bit of the WE-Tech Tenderizer, a full-metal muzzle brake designed for airsoft M1911s.
The original model name (Meat Grinder) helps confirm the link.
Tenderizers can be utilized in close quarters in the same manner as a bayonet, albeit dealing blunt trauma instead of impalement. Despite this, the weapon butt animation and damage for pistols modded with this part remains unchanged.
The point of a pronged flash hider like this is to split the single bright muzzle flash into a wide four-way cross for the shooter's comfort. Not only is it slightly dimmer overall to avoid blinding the shooter in a dark environment, but it also prevents the flash itself from obscuring the target between shots. By this account, it should help with accuracy more than anything. It might appear more intimidating, or possibly alter stability by changing the center of gravity, but it certainly shouldn't alter the speed and thus damage of the weapon it is mounted on.
The Champion's Suppressor is based on the Knight's Armament Co. Mk23 .45 caliber Suppressor. The real life suppressor is designed to fit only the MK23, suggesting that the in-game suppressor is custom.
A "Monolith" is commonly a single massive monument of stone or rock, often carefully and uniformly carved into shape. A typical monolith possesses a lot of perpendicular and parallel lines and surfaces, similar to the shape of this suppressor.
The suppressor is, in fact, simply an oil filter with a bullet hole on one end used as a makeshift sound suppressor. This is somewhat alluded to by its name, as a "budget" item is a cheap, most commonly homemade substitute of dodgy quality for something currently not available.
The "Jungle Ninja Suppressor" weapon mod is a reference to the game Metal Gear Solid 3: Snake Eater. It is used on Naked Snake's custom M1911A1. In the description of the weapon mod it says, "...this suppressor was wielded by a great warrior during the legendary sneaking mission in the 60's." This is a reference to Naked Snake and the mission he did in the 1960's dubbed Operation Snake Eater.
If combined with a Laser Grip (STRYK 18c, Gruber Kurz, Chimano Compact, Chimano 88, Chimano Custom), activation will cycle through the laser on the Laser Grip, the laser on the Combined Module, the light, and then off, in that order. This effect has no practical application but the STRYK 18c, Chimano 88, and Chimano Custom get improved stats from both attachments.
The reload animation is the same technique employed by John Wick in the movie, during the shootout at the Red Circle club, done right after he punches a guard with the pistol and finds his gun is empty, seen here.
The gun returns in John Wick: Chapter Two, however it is used only in the first gunfight of the film before being put back in the floor stash. It is presumably lost in the housefire that destroyed most of Wick's possessions.
Wick can be found occasionally practicing down at the safe house's target ranges with the Contractor fitted with its unique compensator. The pistol had a finalized world model even before it was formally introduced in the DLC.
Despite him firing non-stop at the targets, Wick will not register any damage on the counter at all.