Mugi Seungri-0P 609mm attachment in MW4
The Mugi Seungri-0P 609mm is a barrel attachment (“Long Barrel”) that community sites list for one weapon: Hyeon Burst. CODMunity lists a stat change on 1 of them; the largest is damage range +27% on the Hyeon Burst (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 Seungri-0P 609mm
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 |
|---|---|---|---|
| Hyeon Burst | Assault Rifle | damage range (large, better), bullet velocity (large, better), ADS speed (moderate, worse), ADS idle sway (moderate, worse), hip idle sway (moderate, worse), ADS out speed (small, worse), sprint to fire speed (small, worse), and crouch movement speed (small, worse), and 10 more |
What the Mugi Seungri-0P 609mm changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Hyeon Burst | Damage range | 100% | 127% | +27% (better) |
| Bullet velocity | 775 m/s | 930 m/s | +20% (better) | |
| ADS speed | 275 ms | 300 ms | +9% (worse) | |
| Sprint to fire speed | 210 ms | 225 ms | +7% (worse) | |
| Vertical recoil | 38.3 | 36.8 | −4% (better) | |
| Horizontal recoil | 16.4 | 15.7 | −4% (better) | |
| Movement speed | 4.58 m/s | 4.44 m/s | −3% (worse) | |
| ADS movement speed | 2.36 m/s | 2.29 m/s | −3% (worse) | |
| Sprint speed | 6.07 m/s | 6.01 m/s | −1% (worse) |
Smaller changes are left out of the table: 9 other stats on the Hyeon Burst.
How it ranks among barrel attachments
Its largest change on each weapon, compared with the other barrel attachments the source lists that stat for.
- Hyeon Burst: its large damage range change (better) is the best of 2 barrel attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the Mugi Seungri-0P 609mm
CODMunity lists 2 popular builds that use it: 1 for Multiplayer and 1 for DMZ. The styles are Versatile and Long Range. The same builds also use muzzle, rear grip, stock, laser, optic, underbarrel, and magazine attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Hyeon Burst | Multiplayer, Versatile | Absolute meta | Muzzle: XRK Mil-Tac Suppressor, Rear Grip: X-Vector 799 Grip, Stock: Hyeon Stockpad Tac, and Laser: SA LAZ-500 | Open in the builder: Hyeon Burst, Versatile |
| Hyeon Burst | DMZ, Long Range with Apex Attachment | Not tiered | Optic: KV Corsac Holo, Muzzle: FSS IS300, Underbarrel: FSS Fireline Grip, and Magazine: 60 Round Drum Mag | Open in the builder: Hyeon Burst, Long Range |
Builds are community-reported and unverified.
Frequently asked questions
What does the Mugi Seungri-0P 609mm do in MW4?
CODMunity lists 18 stat changes for it across 1 weapon: 6 better and 12 worse. The largest is damage range +27% on the Hyeon Burst (better).
Which weapons can use the Mugi Seungri-0P 609mm?
Community sites list Hyeon Burst. Activision has not published a compatibility list.
Is the Mugi Seungri-0P 609mm in a popular build?
Yes. CODMunity lists it in 2 popular builds, on Hyeon Burst.