PF1 Fixed Stock attachment in MW4
The PF1 Fixed Stock is a stock attachment (“Assault Stock”) that community sites list for one weapon: M4. CODMunity lists a stat change on 1 of them; the largest is ADS speed +8% on the M4 (worse). No popular build that CODMunity lists uses it.
Community-reportedDMZ Codex, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the PF1 Fixed Stock
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 |
|---|---|---|---|
| M4 | Assault Rifle | ADS speed (moderate, worse), vertical gun kick (moderate, better), vertical recoil (small, better), horizontal recoil (small, better), horizontal gun kick (small, better), and ADS out speed (small, worse) |
What the PF1 Fixed Stock changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| M4 | ADS speed | 240 ms | 259 ms | +8% (worse) |
| Vertical recoil | 40.6 | 37.8 | −7% (better) | |
| Horizontal recoil | 17.1 | 15.9 | −7% (better) |
Smaller changes are left out of the table: 3 other stats on the M4.
How it ranks among stock attachments
Its largest change on each weapon, compared with the other stock attachments the source lists that stat for.
- M4: its moderate ADS speed change (worse) is the weakest of 6 stock attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the PF1 Fixed Stock
No popular build listed by CODMunity uses the PF1 Fixed Stock. That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the PF1 Fixed Stock do in MW4?
CODMunity lists 6 stat changes for it across 1 weapon: 4 better and 2 worse. The largest is ADS speed +8% on the M4 (worse).
Which weapons can use the PF1 Fixed Stock?
Community sites list M4. Activision has not published a compatibility list.
Is the PF1 Fixed Stock in a popular build?
No. None of the popular builds that CODMunity lists uses it.