Far Cry 2

Machete

A simple machete. There are also two variants - "primitive" and "home-made" which can be unlocked.

Makarov PM

The Makarov PM appears in the game in standard and suppressed versions.

Makarov PM 9x18mm Makarov

Star Model-P

The Star Model-P appears in the game.

IMI Desert Eagle

The Desert Eagle, apparently in .50 AE, appears in the game.

Desert Eagle .50 AE

Ingram MAC-10

The MAC-10 appears in the game, in an as of yet unknown caliber.

MAC-10 .45 ACP

IMI Uzi

The Uzi can be used as a secondary weapon

IMI Uzi 9mm

M79

The M79 grenade launcher can be used as a secondary weapon.

M79 Grenade Launcher 40mm

H&K MP5SD

The H&K MP5SD appears in the game.

Heckler & Koch MP5SD# 9mm

Franchi SPAS-12

The Franchi SPAS-12 appears in the game. It fires in semi-auto mode only and holds 12 rounds (the real life version holds 8 rounds).

Ithaca Model 37 "Homeland Security"

The Ithaca 37 can be used as a primary weapon. It is found on the arms dealer's website as "Homeland 37".

Daewoo USAS-12

The Daewoo USAS-12 is a South Korean made combat shotgun capable of semi-automatic and fully-automatic fire. It too appears in the game.

AK-47

The AK-47 is in the game, and features quite prominently on the box art. It does not have the extended muzzle, and therefore is not an AKM. The game also features a number of hidden "gold-plated" AK-47s, which are otherwise identical to the normal AK-47s except they have much higher durability.

AKMs and AK47s have the same barrel the "extended muzzle" you're thinking of is actually a compensator. The gun model its self is quite off to the real thing, it has the rectangular depression of a milled AK47 but has metal stampings of an AKM.

FN FAL

The FN FAL appears in the game. For some reason it is named as the "Paratrooper" variant (folding stock) on the arms dealer's website, even though it has a fixed stock.

H&K G3KA4

The G3KA4 carbine version of the H&K G3 appears in the game.

This looks to me like a G3A4, espcially since the barrel is longer than the G3KA4's

Armalite AR-16

This Gene Stoner designed rifle is available as a primary weapon, with an attached 3x scope. In the game it can only be fired in three-round bursts.

Springfield M1903A4

The Springfield 1903 appears in the game as the M1903A4 sniper version.

SVD Dragunov

The SVD Dragunov appears in the game.

Remington 700

The Remington 700 appears in the game with what appears to be a Leupold Mark IV M3 10 x 40 mm scope, its using darts

Accuracy International AS-50

The Accuracy International AS-50 is a British-made anti-material rifle chambered for .50 BMG. It is used by US special forces and can be found in the game.

PKM

The PK machine gun appears in the game.

FN M249 SAW

The M249 SAW appears in the game, in both man portable and emplaced versions.

MGL-140

This version of the Milkor MGL appears in game equipped with a red dot scope. It only holds 4 rounds (the real life version holds 6 rounds).

RPG-7V

The RPG-7 appears in the game.

FFV Carl Gustav

The Carl Gustav is a Swedish-made 84mm man-portable multi-purpose recoilless rifle produced by Saab-Bofors. It too can be found in the game. It is a laser-guided missile-launcher capable of air-burst in-game. In real life it's an unguided recoilless grenade-launcher with some rocket-boosted rounds available.

LPO-50 Flamethrower

The LPO-50 is a Russian-made flamethrower that can be found in the game.

Browning M2HB

The Browning M2 appears in the game as an emplaced weapon mounted on vehicles. It has a significantly lower rate of fire than its real life counterpart.

Mk. 19

The Mk 19 grenade launcher appears in the game as an emplaced weapon mounted on vehicles.

Sawed-Off Double Barreled Shotgun

Availiable only with the "Fortunes Pack" expansion set.

Remington 11-87

Availiable only with the "Fortunes Pack" expansion set. Equipped with a pistol grip, and silencer.

Crossbow

Availiable only with the "Fortunes Pack" expansion set.