EXP Arc-7 Stock attachment in MW4
The EXP Arc-7 Stock is a stock attachment (“Tactical Stock”) that community sites list for one weapon: APOC-338. CODMunity lists a stat change on 1 of them; the largest is ADS speed −8% on the APOC-338 (better). It is in 1 popular build that CODMunity lists.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the EXP Arc-7 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 |
|---|---|---|---|
| APOC-338 | LMG | 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 EXP Arc-7 Stock changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| APOC-338 | ADS speed | 510 ms | 469 ms | −8% (better) |
| Vertical recoil | 57.6 | 60.5 | +5% (worse) | |
| Horizontal recoil | 31.3 | 32.9 | +5% (worse) |
Smaller changes are left out of the table: 3 other stats on the APOC-338.
How it ranks among stock attachments
Its largest change on each weapon, compared with the other stock attachments the source lists that stat for.
- APOC-338: 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 EXP Arc-7 Stock
CODMunity lists 1 popular build that use it, all for Multiplayer. The styles are Versatile. The same builds also use optic, muzzle, rear grip, and laser attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| APOC-338 | Multiplayer, Versatile | Viable | Optic: ZLR Type C, Muzzle: EXP 450 RTL, Rear Grip: FSS TCB-1 Grip, and Laser: SA LAZ-500 | Open in the builder: APOC-338, Versatile |
Builds are community-reported and unverified.
Frequently asked questions
What does the EXP Arc-7 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 APOC-338 (better).
Which weapons can use the EXP Arc-7 Stock?
Community sites list APOC-338. Activision has not published a compatibility list.
Is the EXP Arc-7 Stock in a popular build?
Yes. CODMunity lists it in 1 popular build, on APOC-338.