Armas do MW3

Assault Rifles:

M4A1
M16A4 – 3 round burst
SCAR-L
CM901
Type 95 – 3 round burst [lvl 32]
G36c - [lvl 42]
ACR 6.8 - [lvl 50]
MK14 – Semi-automatica [lvl 60]
AK-47 - [lvl 68]
FAD - [lvl 78]

LMGs:

L86 LSW
MG36
PKP Pecheneg
MK46 - [lvl 68]
M60E4 - [lvl 72]

Shotguns:

USAS 12
KSG 12
SPAS 12
Striker – Semi-auto - [lvl 48]
Model 1887 - [lvl 62]

Machine pistols:

FMG9
MP9
Scorpion - [lvl 36]
G18 - [lvl 70]

Pistols:

USP .45
P99
MP412
.44 Magnum - [lvl 46]
Five Seven - [lvl 58]
Desert Eagle - [lvl 76]

Sub Machine Guns:

MP5
UMP
PP90M1
P90 [Lv. 38]
PM-9 [Lv. 56]
MP7 [Lv. 74]

Sniper Rifles:

Barrett .50 Cal
L118A (bolt action, similar a L96 do Black Ops)
Dragunov
AS50
RSASS [Lv. 44]
MSR [Lv. 66]

Launchers:

SMAW
Javelin
Stinger - [lvl 40]
XM25 - [lvl 52]
M320 GLM - [lvl 64]
RPG - [lvl 80]

Equipamento Letal:

Frag
Semtex
Throwing Knife
Bouncing Betty - [lvl 37]
Claymore - [lvl 53]
C4 - [lvl 69]

Equipmento:

Flash
Concussion
Scrambler (como um Jammer)
EMP (versão portatil)
Smoke
Trophy System - [lvl 45] (tipo um tripé anti-explosivos)
Tactical Insert - [lvl 61]
Portable Radar - [lvl 77]