Mil-56.9 Heavy Trigger attachment in MW4
The Mil-56.9 Heavy Trigger is a trigger action attachment (“Heavy Trigger”) that community sites list for one weapon: MAR-9. CODMunity lists a stat change on 1 of them; the largest is fire rate −20% on the MAR-9 (worse). It is in 1 popular build that CODMunity lists.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the Mil-56.9 Heavy Trigger
Activision publishes no compatibility list; 2 community sources report this weapon. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| MAR-9 | Marksman Rifle | fire rate (large, worse), sprint to fire speed (small, better), ADS speed (small, better), and ADS out speed (small, better) |
What the Mil-56.9 Heavy Trigger changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| MAR-9 | Fire rate | 315 rpm | 252 rpm | −20% (worse) |
| Sprint to fire speed | 249 ms | 237 ms | −5% (better) | |
| ADS speed | 330 ms | 317 ms | −4% (better) |
Smaller changes are left out of the table: 1 other stat on the MAR-9.
How it ranks among trigger action attachments
Its largest change on each weapon, compared with the other trigger action attachments the source lists that stat for.
- MAR-9: its large fire rate change (worse) is the weakest of 2 trigger action attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the Mil-56.9 Heavy Trigger
CODMunity lists 1 popular build that use it, all for Multiplayer. The styles are Versatile. The same builds also use optic, barrel, rear grip, and laser attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| MAR-9 | Multiplayer, Versatile | Very good | Optic: ZLR Type C, Barrel: Bruen Reaper-X, Rear Grip: Schlager PLM-S9, and Laser: SA LAZ-500 | Open in the builder: MAR-9, Versatile |
Builds are community-reported and unverified.
Frequently asked questions
What does the Mil-56.9 Heavy Trigger do in MW4?
CODMunity lists 4 stat changes for it across 1 weapon: 3 better and 1 worse. The largest is fire rate −20% on the MAR-9 (worse).
Which weapons can use the Mil-56.9 Heavy Trigger?
Community sites list MAR-9. Activision has not published a compatibility list.
Is the Mil-56.9 Heavy Trigger in a popular build?
Yes. CODMunity lists it in 1 popular build, on MAR-9.