XRK 09-RTAC Pro attachment in MW4
The XRK 09-RTAC Pro is a barrel attachment (“Short Barrel”) that community sites list for one weapon: Axion. CODMunity lists a stat change on 1 of them; the largest is bullet velocity −14% on the Axion (worse). It is in 2 popular builds that CODMunity lists.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the XRK 09-RTAC Pro
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 |
|---|---|---|---|
| Axion | Assault Rifle | bullet velocity (moderate, worse), damage range (moderate, worse), vertical recoil (moderate, worse), horizontal recoil (moderate, worse), vertical gun kick (moderate, worse), horizontal gun kick (moderate, worse), ADS idle sway (moderate, better), and hip idle sway (moderate, better), and 11 more |
What the XRK 09-RTAC Pro changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Axion | Bullet velocity | 400 m/s | 344 m/s | −14% (worse) |
| Damage range | 100% | 86% | −14% (worse) | |
| Vertical recoil | 48.9 | 53.8 | +10% (worse) | |
| Horizontal recoil | 13.7 | 15.1 | +10% (worse) | |
| ADS speed | 260 ms | 237 ms | −9% (better) | |
| Movement speed | 4.62 m/s | 4.90 m/s | +6% (better) | |
| Sprint to fire speed | 210 ms | 197 ms | −6% (better) | |
| ADS movement speed | 2.41 m/s | 2.48 m/s | +3% (better) | |
| Sprint speed | 6.11 m/s | 6.17 m/s | +1% (better) |
Smaller changes are left out of the table: 10 other stats on the Axion.
How it ranks among barrel attachments
Its largest change on each weapon, compared with the other barrel attachments the source lists that stat for.
- Axion: its moderate bullet velocity change (worse) is the weakest of 4 barrel attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the XRK 09-RTAC Pro
CODMunity lists 2 popular builds that use it: 1 for Multiplayer and 1 for DMZ. The styles are Apex Attachment. The same builds also use muzzle, magazine, and ammunition attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Axion | Multiplayer, Apex Attachment with Apex Attachment | Viable | Muzzle: FSS IS300, Magazine: 100 Round Drum, and Ammunition: .300 BLK Overpressured | Open in the builder: Axion, Apex Attachment |
| Axion | DMZ, Apex Attachment with Apex Attachment | Not tiered | Muzzle: FSS IS300, Magazine: 100 Round Drum, and Ammunition: .300 BLK Overpressured | Open in the builder: Axion, Apex Attachment |
Builds are community-reported and unverified.
Frequently asked questions
What does the XRK 09-RTAC Pro do in MW4?
CODMunity lists 19 stat changes for it across 1 weapon: 13 better and 6 worse. The largest is bullet velocity −14% on the Axion (worse).
Which weapons can use the XRK 09-RTAC Pro?
Community sites list Axion. Activision has not published a compatibility list.
Is the XRK 09-RTAC Pro in a popular build?
Yes. CODMunity lists it in 2 popular builds, on Axion.