Mafia II is an open-world action-adventure video game, the sequel of Mafia: The City of Lost Heaven. It was developed by 2K Czech and published by 2K Games in 2010 for the PC, Xbox 360 and PlayStation 3.
Notice: Minor spoilers are present on this page.
The following firearms make an appearance in the video game Mafia II:
The Colt M1911A1 is the standard pistol throughout the game. This weapon is seen being used by Vito, Joe and Henry in the game. The M1911A1 is Vito's favorite gun.
Most "Made Men," including Joe carry the weapon in the back of their pants. Vito seems to prefer a shoulder rig, based on how he draws the weapon in cutscences.
Custom Colt M1911A1
In Chapter 10 Joe and Vito use a special custom version with a 23 round magazine. Joe tells Vito not to lose it "because there are only two in the world", yet it can be bought at Giuseppe's. This version also appears to be nickel-plated and has black wooden grips. Appears as "1911 Semi" in game.
Apparently, it was made in the likeness a legendary Colt Government Model which was specially modified by gunsmith Hyman Lebman, and owned by John Dillinger and "Baby Face" Nelson. However, the gun in the game, and the actual gun firing modes differ both (semi-auto in the game and full-auto in reality) and appearance as well as the size and capacity of the magazine (25 rounds in the real sample to 23 rounds at a game's model).
Smith & Wesson Model 12
The Smith & Wesson Model 12 appears as the ".38 Revolver". Main sidearm of the Empire City Police Department. It is noted as a Smith & Wesson Model 12 by the cylinder release, which is clearly a push release and not the same as the Colt Detective Special's "pull-to-release" latch. It also fires six shots, which eliminates the Smith & Wesson Model 36 as a possibility.
The Mauser C96 can be seen being used by an Italian soldier in the training mission. Can be bought at Harry's gun shop. It incorrectly uses .45 ACP rounds (only the Chinese Shansi Type 17 variant uses .45 ACP rounds) and is shown to be reloaded by inserting a vertical box magazine into the weapon from the underside of the magazine housing. Some early Mauser C96 prototypes had a box magazine feature but they were rejected; the only C96 variants to commonly use a detachable magazine were select-fire models like the M712 Schnellfeuer, though there are some modern aftermarket kits to convert standard C96s to accept magazines.
Smith & Wesson Model 27
The Smith & Wesson Model 27 appears as the "Magnum" and takes .357 rounds. Oddly it's modeled with a 5-shot cylinder; though he accommodates a six rounds, and uses the 6-round speedloaders. Also revolver modeled with a full-length lug under the barrel.
Also S&W Model 27 with 4" barrel depicted on the icon of three-stars police wanted level, despite the fact that the police officers in the game use the Snub Nose S&W Model 12 revolvers.
The preferred submachine gun of the police officers in the game is the Thompson M1A1 with a 30-round box magazine. The fact that the Empire Police use this weapon during the 1940s section of the game is highly unlikely as this weapon was being issued to US troops fighting overseas.
The Thompson M1928 with a 50-round drum magazine is the main submachine gun of the gangsters. Also Thompson M1928 submachine guns uses by SWAT officers in the Joe's Adventures DLC, during the "Supermarket" mission. The M1928 Thompson in game is modeled with an M1/M1A1 Thompson stock and is incorrectly shown firing from a closed bolt.
Also, Thompson M1928 depicted on the icon of four-stars police wanted level, despite the fact that the police officers in the game use the M1A1.
Beretta Model 38A
The Beretta Model 38A is used by Italian soldiers in the training mission, and can be later bought at Harry's gun shop later in the game. Called ".38 SMG" (.38 apparently meaning 9mm) in the game. It is also the only SMG to be to fired from the shoulder.
The MP40 is often used by enemy gangsters, and is more common than the Grease Gun. It has a surprisingly slow rate of fire and can be bought at Harry's. Bar owners on one side of town will use the MP40 if the player pulls a weapon in their bar.
M3 Grease Gun
The M3 Grease Gun is sometimes used by enemy gangsters but mostly by, fittingly, the Greaser gang. Can also be bought at Harry's gun shop.
Used by Vito during the training mission. Although the M1 Garand is an army rifle, it can be bought at civilian gun shops. The M1 Garand is also show to be carried by Prison Guards during the 1940s, this is also unlikely as it was being used overseas by US troops. Male burger restaurant owners will pull out an M1 Garand if Vito pulls out a firearm in their store.
The Karabiner 98k is used during the training mission, but can also be bought at Harry's gun shop. It grants one-hit kills against most enemies.
An MG42 machine gun is used by Vito in Mission 4 "The Buzzsaw", where he uses it to ambush a convoy of gangsters. Can also be used in the training mission.
A browning M2 Aircraft is seen on a Sherman tank in the first level, but is never used.
Remington 870 Field Gun
A Remington 870 Field Gun is used by Vito, gangsters, cops, and random shop owners. An anachronism, the 870 wasn't produced until 1950 which makes it incorrect to have for the first five missions. The raised rib was also a feature that wouldn't be added until later. Also, the shotgun in-game carries 8 rounds whereas it is modeled to look like it holds 4. For some reason even if Vito fires once and reloads one shell, he always pumps the gun, but still retains the same amount of ammo. An advertisement on the in-game radio specifically calls the weapon a Remington 870.
Mk 2 Hand Grenade
The Mk 2 hand grenade is the frag grenade used in the game. Referred to as "Mk II Grenade".
Model 24 Stielhandgranate
During the grenade tutorial in Chapter 1, Vito tosses an Mk 2 frag grenade that lands on a box of Model 24 Stielhandgranates, causing a huge explosion.
Throughout the development of the Mafia II, there have been many changes to the content, including cut missions, vehicles, and weapons. Here is a summary of the currently known weapons that have been removed.
The M14 rifle was to appear in the game, among other firearms, but then for some reason, it has been removed. The player can use the M14 if he modifies the game's files.
The Maxim M1910 machine gun was to appear in the Joe’s Adventures DLC, and intended for use in the final mission, "Cathouse", but was later removed, as well as many other content. You can see it only in the Test Scene (which can be unlocked with the help of modifications).
Model 24 Stielhandgranate
This is perhaps the most interesting removed weapon, as it is fully operational, and has its own HUD icon. It seems, that originally they had actively used by a player (and, quite possibly, and NPC), but in the end the role of the M24 grenades has been reduced to only episodic appearance. The player can use the Model 24 Stielhandgranate if he modifies the game's files.
Kar98k Sniper Rifle
About this removed weapon, little is known. Called "K98 Sniper" in the game's files; no associated model appear to exist for it. What is most interesting, the player can use this removed weapon if he modifies the game's files. At the same time it is clear that it does not have its world-model, function of a sniper's approximation, and a HUD-icon; on gaming performance, it is as ordinary Kar98k, but with increased accuracy and destructive power. This clearly indicates that this weapon from the game has been removed at an early stage of development.