FSS HOC-30 attachment in MW4
The FSS HOC-30 is a muzzle attachment (“Heavy Silencer”) that community sites list for one weapon: Signal 50. CODMunity lists a stat change on 1 of them; the largest is bullet velocity +16% on the Signal 50 (better). It is in 3 popular builds that CODMunity lists.
Community-reportedDMZ Radar, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the FSS HOC-30
Activision publishes no compatibility list; 3 community sources report this weapon. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Signal 50 | Sniper Rifle | bullet velocity (large, better), ADS idle sway (large, worse), ADS gun bob (large, worse), damage range (large, better), ADS out speed (small, worse), vertical recoil (small, better), horizontal recoil (small, better), and vertical gun kick (small, better), and 7 more |
What the FSS HOC-30 changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Signal 50 | Bullet velocity | 600 m/s | 696 m/s | +16% (better) |
| Damage range | 100% | 115% | +15% (better) | |
| Vertical recoil | 19.8 | 18.6 | −6% (better) | |
| Horizontal recoil | 8.4 | 7.9 | −6% (better) | |
| ADS speed | 590 ms | 620 ms | +5% (worse) | |
| Movement speed | 4.22 m/s | 4.14 m/s | −2% (worse) | |
| ADS movement speed | 1.07 m/s | 1.05 m/s | −2% (worse) |
Smaller changes are left out of the table: 8 other stats on the Signal 50.
How it ranks among muzzle attachments
Its largest change on each weapon, compared with the other muzzle attachments the source lists that stat for.
- Signal 50: its large bullet velocity change (better) is the only one listed.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the FSS HOC-30
CODMunity lists 3 popular builds that use it: 1 for Multiplayer and 2 for DMZ. The styles are Apex Attachment and Sniper. The same builds also use optic, barrel, rear grip, and stock attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Signal 50 | Multiplayer, Apex Attachment with Apex Attachment | Viable | Optic: Schlager 7x, Barrel: MR50 Tyrant 29", Rear Grip: GL Zero Drop 6, and Stock: EXP T50-S Heavy | Open in the builder: Signal 50, Apex Attachment |
| Signal 50 | DMZ, Sniper with Apex Attachment | Not tiered | Optic: Schlager 7x, Barrel: MR50 Tyrant 29", Rear Grip: GL Zero Drop 6, and Stock: EXP T50-S Heavy | Open in the builder: Signal 50, Sniper |
| Signal 50 | DMZ, Sniper | Not tiered | Optic: Schlager 7x, Barrel: MR50 Tyrant 29", Rear Grip: GL Zero Drop 6, and Stock: EXP T50-S Heavy | Open in the builder: Signal 50, Sniper |
Builds are community-reported and unverified.
Frequently asked questions
What does the FSS HOC-30 do in MW4?
CODMunity lists 15 stat changes for it across 1 weapon: 6 better and 9 worse. The largest is bullet velocity +16% on the Signal 50 (better).
Which weapons can use the FSS HOC-30?
Community sites list Signal 50. Activision has not published a compatibility list.
Is the FSS HOC-30 in a popular build?
Yes. CODMunity lists it in 3 popular builds, on Signal 50.