SO 898F 19" attachment in MW4
The SO 898F 19" is a barrel attachment (“Heavy Long Barrel”) that community sites list for one weapon: Patriot XMR. CODMunity lists a stat change on 1 of them; the largest is damage range +16% on the Patriot XMR (better). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the SO 898F 19"
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 |
|---|---|---|---|
| Patriot XMR | Assault Rifle | damage range (large, better), bullet velocity (large, better), ADS speed (moderate, worse), vertical recoil (moderate, better), horizontal recoil (moderate, better), vertical gun kick (moderate, better), horizontal gun kick (moderate, better), and ADS out speed (moderate, worse), and 11 more |
What the SO 898F 19" changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Patriot XMR | Damage range | 100% | 116% | +16% (better) |
| Bullet velocity | 620 m/s | 713 m/s | +15% (better) | |
| ADS speed | 280 ms | 311 ms | +11% (worse) | |
| Vertical recoil | 52.6 | 47.3 | −10% (better) | |
| Horizontal recoil | 14.4 | 13.0 | −10% (better) | |
| ADS movement speed | 2.22 m/s | 2.06 m/s | −7% (worse) | |
| Sprint to fire speed | 210 ms | 221 ms | +5% (worse) | |
| Movement speed | 4.54 m/s | 4.36 m/s | −4% (worse) | |
| Sprint speed | 6.05 m/s | 5.87 m/s | −3% (worse) |
Smaller changes are left out of the table: 10 other stats on the Patriot XMR.
How it ranks among barrel attachments
Its largest change on each weapon, compared with the other barrel attachments the source lists that stat for.
- Patriot XMR: its large damage range change (better) is in the lower half of 3 barrel attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the SO 898F 19"
No popular build listed by CODMunity uses the SO 898F 19". That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the SO 898F 19" do in MW4?
CODMunity lists 19 stat changes for it across 1 weapon: 6 better and 13 worse. The largest is damage range +16% on the Patriot XMR (better).
Which weapons can use the SO 898F 19"?
Community sites list Patriot XMR. Activision has not published a compatibility list.
Is the SO 898F 19" in a popular build?
No. None of the popular builds that CODMunity lists uses it.