FSS DES-Tac70 attachment in MW4
The FSS DES-Tac70 is a muzzle attachment (“Tactical Silencer”) that community sites list for 2 weapons: Astaroth .57 and Signal 50. CODMunity lists a stat change on 2 of them; the largest is ADS speed +3% on the Astaroth .57 (worse). It is in 2 popular builds that CODMunity lists.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the FSS DES-Tac70
Activision publishes no compatibility list; 2 community sources report these 2 weapons. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Astaroth .57 | Sniper Rifle | ADS out speed (small, worse) and ADS speed (small, worse) | |
| Signal 50 | Sniper Rifle | ADS out speed (small, worse) and ADS speed (small, worse) |
What the FSS DES-Tac70 changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Astaroth .57 | ADS speed | 603 ms | 621 ms | +3% (worse) |
| Signal 50 | ADS speed | 590 ms | 608 ms | +3% (worse) |
Smaller changes are left out of the table: 1 other stat on the Astaroth .57 and 1 other stat on the Signal 50.
Changes across weapons
The stats it changes on 2 weapons, with the lowest and highest change.
| Stat | Weapons | Lowest change | Highest change | Verdicts |
|---|---|---|---|---|
| ADS speed | 2 | +3% | +3% | 0 better, 2 worse |
| ADS out speed | 2 | +4% | +4% | 0 better, 2 worse |
How it ranks among muzzle attachments
Its largest change on each weapon, compared with the other muzzle attachments the source lists that stat for.
- Astaroth .57: its small ADS speed change (worse) is in the bottom quarter of 5 muzzle attachments.
- Signal 50: its small ADS speed change (worse) is in the bottom quarter of 5 muzzle attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the FSS DES-Tac70
CODMunity lists 2 popular builds that use it, all for Multiplayer. The styles are Sniper and Mobility. The same builds also use optic, rear grip, stock, and laser attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Signal 50 | Multiplayer, Sniper | Meta | Optic: Cronen R808, Rear Grip: GL Zero Drop 6, Stock: Cronen SN-PAD50, and Laser: XRK Clutch-LS | Open in the builder: Signal 50, Sniper |
| Signal 50 | Multiplayer, Mobility | Very good | Optic: Cronen R808, Rear Grip: EXP TRIM-54F, Stock: Cronen SN-PAD50, and Laser: XRK Clutch-LS | Open in the builder: Signal 50, Mobility |
Builds are community-reported and unverified.
Frequently asked questions
What does the FSS DES-Tac70 do in MW4?
CODMunity lists 4 stat changes for it across 2 weapons: 0 better and 4 worse. The largest is ADS speed +3% on the Astaroth .57 (worse).
Which weapons can use the FSS DES-Tac70?
Community sites list Astaroth .57 and Signal 50. Activision has not published a compatibility list.
Is the FSS DES-Tac70 in a popular build?
Yes. CODMunity lists it in 2 popular builds, on Signal 50.