Mugi Kalnal-H 12G attachment in MW4
The Mugi Kalnal-H 12G is a muzzle attachment (“Heavy Silencer”) that community sites list for one weapon: Warlord. CODMunity lists a stat change on 1 of them; the largest is bullet velocity +16% on the Warlord (better). It is in 2 popular builds that CODMunity lists.
Community-reportedDMZ Radar, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the Mugi Kalnal-H 12G
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 |
|---|---|---|---|
| Warlord | Shotgun | bullet velocity (large, better), ADS idle sway (large, worse), ADS gun bob (large, worse), damage range (moderate, better), ADS speed (moderate, worse), ADS out speed (moderate, worse), vertical recoil (small, better), and horizontal recoil (small, better), and 7 more |
What the Mugi Kalnal-H 12G changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Warlord | Bullet velocity | 325 m/s | 377 m/s | +16% (better) |
| Damage range | 100% | 110% | +10% (better) | |
| ADS speed | 340 ms | 371 ms | +9% (worse) | |
| Vertical recoil | 79.9 | 75.1 | −6% (better) | |
| Horizontal recoil | 29.1 | 27.4 | −6% (better) | |
| Movement speed | 4.55 m/s | 4.46 m/s | −2% (worse) | |
| ADS movement speed | 2.93 m/s | 2.87 m/s | −2% (worse) |
Smaller changes are left out of the table: 8 other stats on the Warlord.
How it ranks among muzzle attachments
Its largest change on each weapon, compared with the other muzzle attachments the source lists that stat for.
- Warlord: 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 Mugi Kalnal-H 12G
CODMunity lists 2 popular builds that use it, all for DMZ. The styles are Close Range. The same builds also use barrel, underbarrel, rear grip, stock, bolt, and laser attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Warlord | DMZ, Close Range with Apex Attachment | Not tiered | Barrel: NK Gangta-12G, Underbarrel: MIRE-50 Tac Grip, Rear Grip: DV3-Sinsok Grip, and Stock: Mugi D40 Stock | Open in the builder: Warlord, Close Range |
| Warlord | DMZ, Close Range | Not tiered | Bolt: L-Strike Bolt, Barrel: NK Gangta-12G, Stock: Mugi D40 Stock, and Laser: Expedite Intra-5b | Open in the builder: Warlord, Close Range |
Builds are community-reported and unverified.
Frequently asked questions
What does the Mugi Kalnal-H 12G 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 Warlord (better).
Which weapons can use the Mugi Kalnal-H 12G?
Community sites list Warlord. Activision has not published a compatibility list.
Is the Mugi Kalnal-H 12G in a popular build?
Yes. CODMunity lists it in 2 popular builds, on Warlord.