Switch 2 Deal
Codes
Features
Guides
Lists
Switch 2 Deal
Games
Call of Duty
Roblox
Pokemon
Fortnite
GTA
Minecraft
Guides
Reviews
News
Tech
More Categories
Balatro
Clair Obscur: Expedition 33
Mario Kart World
Marathon
Fatal Fury: City of the Wolves
Path of Exile 2
Dragon Quest 3 HD-2D
Dragon Age: The Veilguard
Metaphor: ReFantazio
Silent Hill 2
Codes
Features
Guides
Lists
Home
mw3 Database
attachments
Series 4-MR
Series 4-MR
The Series 4-MR attachment in Modern Warfare 3 (2023).
Last Updated
18 Jul 2025
at 21:12 pm GMT
Series 4-MR
Type
Barrel
How to unlock Series 4-MR
More attachments in our database
Retort 90 Grip Tape
Recon Comb
Forbearer Heavy Stock
TRST-IV Grip Tape
Lore-9 Heavy Barrel
Folding Stock
PCS-90 Assault Grip
ZEHMN35 Compensated Flash Hider
HVS 3.4 Pad
Cronen Headwind Long
See all attachments
Visit other Modern Warfare 3 & Warzone Databases
Weapons
Operators
Maps
Attachments
Perks
Tacticals
Lethals
Field Upgrades
Killstreaks
Blueprints
Characters
Missions
Series 4-MRSeries 4-MR