Trigger Action attachments in MW4
Modern Warfare 4 lists 13 community-reported trigger action attachments. Each has its own page below. Activision's weapon sheets give 5 weapons a trigger action slot. CODMunity lists stat changes for 13 of them. Activision has not published a description for this attachment type.
Community-reportedNames, weapons and stat changes from community sites, read November 4, 2026: community-reported and unverified.
Strongest reported effects of trigger action attachments
These come from CODMunity's game data (read November 4, 2026). Each line names the attachment and weapon with the largest reported change to one stat, as a percentage of that weapon's own value, so two weapons with different base values are compared by percent only. Lines marked better move the stat in the direction that helps the player; lines marked worse show the largest cost.
Largest reported improvements
- Largest reported ADS speed decrease (better): KP68 Curve-H (Heavy Trigger) on the Krait P68 (Pistol), −6%.
- Largest reported sprint to fire speed decrease (better): KP68 Curve-H (Heavy Trigger) on the Krait P68 (Pistol), −5%.
- Largest reported fire rate increase (better): M357 Shooter (Hair Trigger) on the Mojave .357 (Pistol), +89%.
- Largest reported ADS out speed decrease (better): KP68 Curve-H (Heavy Trigger) on the Krait P68 (Pistol), −5%.
- Largest reported ADS idle sway decrease (better): MG-Tac Trigger (Light Trigger) on the MAR-9 (Marksman Rifle), −11%.
Largest reported drawbacks
- Largest reported vertical recoil increase (worse): MG-Tac Trigger (Light Trigger) on the MAR-9 (Marksman Rifle), +20%.
- Largest reported fire rate decrease (worse): KP68 Curve-H (Heavy Trigger) on the Krait P68 (Pistol), −21%.
Trigger Action attachments with a page
The table is sorted by the number of weapons the source lists a stat change for, most first, then by name from A to Z.
| Attachment | Weapons listed | Weapons with a stat change | Largest reported change |
|---|---|---|---|
| Corio Lightning N6 | 1 | 1 | Fire rate +40% on the .50 GS (better) |
| KP68 Curve-H | 1 | 1 | Fire rate −21% on the Krait P68 (worse) |
| M357 Heavy | 1 | 1 | Fire rate −11% on the Mojave .357 (worse) |
| M357 Light | 1 | 1 | Fire rate +41% on the Mojave .357 (better) |
| M357 Shooter | 1 | 1 | Fire rate +89% on the Mojave .357 (better) |
| MG-Tac Trigger | 1 | 1 | Fire rate +31% on the MAR-9 (better) |
| Mil-56.9 Heavy Trigger | 1 | 1 | Fire rate −20% on the MAR-9 (worse) |
| P68 Tapper 9 | 1 | 1 | Fire rate +39% on the Krait P68 (better) |
| RCN-7X Light | 1 | 1 | Fire rate +21% on the .50 GS (better) |
| SANG Highmatch | 1 | 1 | Fire rate −11% on the SANG 9mm (worse) |
| SANG Insta-F Trigger | 1 | 1 | Fire rate +24% on the SANG 9mm (better) |
| Schlager GS Match | 1 | 1 | Fire rate −7% on the .50 GS (worse) |
| XRK Sideswipe | 1 | 1 | Fire rate +12% on the SANG 9mm (better) |
Weapons with a trigger action slot
Activision's launch weapon sheets give 5 weapons a trigger action slot. MAR-9 Auto, GS Magna, and Mojave Lawless block this slot while equipped.
Frequently asked questions
What does a trigger action attachment do in MW4?
Activision has not published a description for this attachment type. The effects below come from community data and are unverified.
How many trigger action attachments are there?
Community sites report 13 trigger action attachments in MW4. Activision has not published its list, so the real number is unknown. 13 of them have a page on this site.
Which trigger action attachment has the largest reported ADS speed change?
KP68 Curve-H on the Krait P68, at −6% (better), according to CODMunity's game data. That is community-reported and unverified.
Which weapons have a trigger action slot?
MAR-9, SANG 9mm, Krait P68, .50 GS, and Mojave .357.