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.
Heckler & Koch MP5A5
Heckler and Koch MP5A5 - 9x19mm.
PP-19 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
M16A2 Rifle - 5.56x45mm. Select Fire rifle (Safe/Semi/3 round Burst Only).
M16A4
M16A4 MWS (Modular Weapon System) with RAS rails installed, AN/PEQ-2 IR designator, RIS foregrip, and (replica) ACOG scope 5.56x45mm. This is the USMC style set up.
M-16A4 with a M203 grenade launcher, ACOG TA31 sight and AN/PEQ2 laser module- 5.56x45mm
M4A1
Colt M4A1 Carbine with M68 Aimpoint reflex optic and Knight's Armament RAS railed handguard and vertical forward grip - 5.56x45mm
M4A1 carbine with a M68 Aimpoint sight- 5.56x45mm
Heckler & Koch G36
Heckler & Koch G36 with ZF 3x4° dual optical sight - 5.56mm
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
M14 rifle - 7.62x51mm NATO
M24
M24 sniper rifle 7.62x51mm NATO, .300 Winchester Magnum
M40A3
Mk 12 Mod 0 SPR
Mark 12 Mod 0 SPR, 5.56x45mm.
Barrett M107
Barrett M82A1 sniper rifle .50 BMG
Dragunov SVD
SVD Dragunov sniper rifle - 7.6x54mm R
VSS Vintorez
VSS Vintorez 9x39mm with PSO-1 scope
KSVK
KSVK sniper rifle 12.7x108 mm
CZ-550
Machine Guns
RPK-74
RPK-74 light machine gun 5.45x39mm with 45-round box magazine
RPK-74 with (incorrect) drum magazine - 5.45x39mm.
PKM
PKM with classic (most seen) version of the flash hider - 7.62x54R
Pecheneg
DsHKM
A Russian DShKM in 12.7mm on Tripod
Kord
Kord heavy machine gun 12.7x108mm with ammo drum
Heckler & Koch MG36
Heckler & Koch MG36, 5.56x45mm with Beta C-Mag drum magazine and Bundeswehr double sights
M249 SAW
M249-E2 SAW - upgraded M249 with heat shield and full synthetic Stock - 5.56mm with 200 round ammo drum.
M249 SAW with 200 round box magazine - 5.56x45mm.
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
Mk 48 Mod 0 with Aimpoint sight - 7.62x51mm.
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
M136 AT4 Anti-Tank rocket launcher - 84mm
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
Podnos 2B14 82mm mortar
Mk. 19
M252 81mm mortar