For similar features, see Kill Counter and Watches.
Gun Screens are a weapon customization option featured in Call of Duty: Modern Warfare II, Call of Duty: Warzone 2.0, Call of Duty: Warzone Mobile, Call of Duty: Black Ops 6, Call of Duty: Black Ops 7, and Call of Duty: Modern Warfare 4. The Gun Screens are placed on the side of a gun and function similarly to Watches from previous Call of Duty games.
The Gun Screens are also available in Call of Duty: Modern Warfare III as part of the Modern Warfare II carry-over.
1 List of Gun Screens
1.1 Call of Duty: Modern Warfare II
1.2 Call of Duty: Warzone Mobile
1.3 Call of Duty: Black Ops 6
1.4 Call of Duty: Black Ops 7
2 Quotes
List of Gun Screens[]
Call of Duty: Modern Warfare II[]
Name
Gun Screen
How to obtain
Function
Battle Buddy AI
Bundle Battle Buddy: War Computer Pack
Battle Buddy
Battle Buddy Aloof
Battle Pass Season Six Sector F13
Battle Buddy
Battle Buddy Best Friend
Bundle Battle Buddy Tracer Pack: Grim Tiding
Battle Buddy
Battle Buddy Bro
Bundle Battle Buddy: Chatter Pack
Battle Buddy
Chronophobia
Battle Pass Season One Sector A0
Time/date/temperature display
Doomguy
Bundle Tracer Pack: Doom
Reacts to taking damage
Emblematic
Battle Pass Season Two Sector B0
Time/emblem display
Endless Black
Battle Pass Season One Sector A5
Kill/death ratio tracker
Envy Tracker
Bundle VII: Envy
Kill/death ratio tracker
Feed The Beast
Bundle VII: Gluttony
Kill/death ratio tracker
Ghost Tracker
Bundle Paranormal Investigator Pack
Detects Spirits and collects Souls.
Gwen
Battle Pass Season Five BlackCell Sector
Battle Buddy
Listless
Bundle Torment's Return
Kill/death ratio tracker
Necroclock
Battle Pass Season Six Instant Sector
Displays the current date and time
NPC
Bundle Battle Buddy: NPC Pack
Battle Buddy
Rainbow Chase
Bundle Tracer Pack: Pádraig's Pandemonium
Rank display
Ranked Win Tracker
Unlocked by reaching Rank 30 in Multiplayer Ranked Play
Win tracker
Ranked Play Win Tracker
Unlocked by reaching Rank 30 in Warzone Ranked Play
Win tracker
Ranking Officer
Battle Pass Season Two Sector B5
Rank tracker
Time And Again
Battle Pass Season Four Sector D16
Displays actual time
Time Is Money
Bundle VII: Greed
Kill/death ratio tracker
Track And Kill
Unlocked by redeeming 60 Trophies during the Trophy Hunt event
Source: https://callofduty.fandom.com/wiki/Gun_Screens. This is an independent Call of Duty: Modern Warfare 4 reference page.