GI MilSpec Stock attachment in MW4
The GI MilSpec Stock is a stock attachment (“Tactical Stock”) that community sites list for one weapon: X-58 Nyx. CODMunity lists a stat change on 1 of them; the largest is ADS speed −8% on the X-58 Nyx (better). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the GI MilSpec Stock
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 |
|---|---|---|---|
| X-58 Nyx | SMG | ADS speed (moderate, better), ADS out speed (moderate, better), vertical recoil (small, worse), horizontal recoil (small, worse), vertical gun kick (small, worse), and horizontal gun kick (small, worse) |
What the GI MilSpec Stock changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| X-58 Nyx | ADS speed | 255 ms | 235 ms | −8% (better) |
| Vertical recoil | 36.0 | 37.8 | +5% (worse) | |
| Horizontal recoil | 10.5 | 11.0 | +5% (worse) |
Smaller changes are left out of the table: 3 other stats on the X-58 Nyx.
How it ranks among stock attachments
Its largest change on each weapon, compared with the other stock attachments the source lists that stat for.
- X-58 Nyx: its moderate ADS speed change (better) is the weakest of 2 stock attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the GI MilSpec Stock
No popular build listed by CODMunity uses the GI MilSpec Stock. That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the GI MilSpec Stock do in MW4?
CODMunity lists 6 stat changes for it across 1 weapon: 2 better and 4 worse. The largest is ADS speed −8% on the X-58 Nyx (better).
Which weapons can use the GI MilSpec Stock?
Community sites list X-58 Nyx. Activision has not published a compatibility list.
Is the GI MilSpec Stock in a popular build?
No. None of the popular builds that CODMunity lists uses it.