ArmA II (or Armed Assault 2) is the sequel to ArmA: Combat Operations and the spiritual successor to Operation Flashpoint. The game will revolve around a war in the fictional ex-Soviet republic of Chenarus, which is being fought over by the government, communist rebels, the United States and the Russian Federation. The current list of weapons represents what has been shown in previews so far (with an eventual 81 weapon variants)
Pistols
Colt M1911
M1911 to M1911A1 comparison pictures.
Makarov PM
Russian
Makarov PM 9x18mm Makarov
Beretta M9
Sub-Machine guns
Heckler & Koch MP5SD6
Heckler & Koch MP5SD6 9mm with Stock Extended and 3-round trigger group. What is unusual is that most Airsoft versions of this gun don't have the fourth (3 rd burst) position whereas the real gun does.
Bizon
PP-19 Bizon 9x18mm Makarov
Assault Rifles
AKM
AKM, Stamped Steel Receiver w/ slant muzzle brake 7.62x39mm
AKMS
AK-74
AK-74 with GP-30 grenade launcher- 5.45x39mm
AKS-74
AKS-74 5.45x39mm with bayonet and bayonet sheath
AKS-74U
AKS-74U (also referred to as the "AKSU" or 'Krinkov') - 5.45x39mm
AKS-74UN with a Kobra sight- 5.45x39mm
AK-107
AK-107 with a Kobra sight- 5.45x39mm
M16A2
M16A4
M-16A4 with a M203 grenade launcher, ACOG TA31 sight and AN/PEQ2 laser module- 5.56x45mm
M4A1
M4A1 carbine with a M68 Aimpoint sight- 5.56x45mm
Heckler & Koch G36
Heckler & Koch G36K- 5.56x45mm
Heckler & Koch G36C with suppressor and a EOTech sight- 5.56x45mm
Heckler & Koch XM8
Heckler & Koch XM8 carbine with M320 grenade launcher- 5.56x45mm.
Heckler & Koch XM8 Compact- 5.56x45mm.
Sniper Rifles
M14 DMR
M24
M24 sniper rifle 7.62x51mm NATO, .300 Winchester Magnum
Mk 12 Mod 0 SPR
Barrett M107
Dragunov SVD
SVD Dragunov sniper rifle - 7.6x54mm R
VSS Vintorez
KVSK
CZ-550
Machine Guns
RPK-74
RPK-74 light machine gun 5.45x39mm with 45-round box magazine
PKM
PKM with classic (most seen) version of the flash hider - 7.62x54R
DsHKM
A Russian DShKM in 12.7mm on Tripod
NSVT
NSV heavy machine gun 12.7x107mm in anti-aircraft mounting
M249 SAW
M249-E2 SAW - upgraded M249 with heat shield and full synthetic Stock - 5.56mm with 200 round ammo drum.
M240G
FN MAG 58 mocked up to resemble an M240, with synthetic buttstock and heatshield added - 7.62x51mm NATO
Mk 48 Mod 0
Mk 48 Mod 0 machine gun 7.62x51mm NATO with RIS foregrip
M2 HB
Browning M2HB on vehicle mount - .50 BMG
Shotguns
Benelli M1014 JSCS
Benelli M4 Super 90 12 gauge
Saiga 12K
Izhmash Saiga-12, 12 Gauge
Anti-Tank weapons
RPG-7V
RPG-18
AT-13 Saxhorn-2 (9K115-2 Metis)
M136 AT-4
Mk 153 Mod 0 SMAW
FGM-148 Javelin
BGM-171 TOW
Anti-Air weapons
SA-7 (9K32 Strela-2)
SA-18 Grouse (9K38 Igla)
FIM-92F Stinger
Fire Support
AGS-30
SPG-9 Recoiless Rifle
ZSU-23-4 AA gun
60mm mortar