SO Pilot-RX 11" attachment in MW4
The SO Pilot-RX 11" is a barrel attachment (“Short Barrel”) that community sites list for one weapon: Patriot XMR. CODMunity lists a stat change on 1 of them; the largest is bullet velocity −12% on the Patriot XMR (worse). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the SO Pilot-RX 11"
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 | bullet velocity (moderate, worse), damage range (moderate, worse), ADS speed (moderate, better), ADS out speed (moderate, better), vertical recoil (moderate, worse), horizontal recoil (moderate, worse), vertical gun kick (moderate, worse), and horizontal gun kick (moderate, worse), and 11 more |
What the SO Pilot-RX 11" 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 | Bullet velocity | 620 m/s | 546 m/s | −12% (worse) |
| Damage range | 100% | 88% | −12% (worse) | |
| ADS speed | 280 ms | 252 ms | −10% (better) | |
| Vertical recoil | 52.6 | 57.9 | +10% (worse) | |
| Horizontal recoil | 14.4 | 15.8 | +10% (worse) | |
| Movement speed | 4.54 m/s | 4.81 m/s | +6% (better) | |
| Sprint to fire speed | 210 ms | 197 ms | −6% (better) | |
| ADS movement speed | 2.22 m/s | 2.29 m/s | +3% (better) | |
| Sprint speed | 6.05 m/s | 6.11 m/s | +1% (better) |
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 moderate bullet velocity change (worse) is the weakest of 3 barrel attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the SO Pilot-RX 11"
No popular build listed by CODMunity uses the SO Pilot-RX 11". That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the SO Pilot-RX 11" do in MW4?
CODMunity lists 19 stat changes for it across 1 weapon: 13 better and 6 worse. The largest is bullet velocity −12% on the Patriot XMR (worse).
Which weapons can use the SO Pilot-RX 11"?
Community sites list Patriot XMR. Activision has not published a compatibility list.
Is the SO Pilot-RX 11" in a popular build?
No. None of the popular builds that CODMunity lists uses it.