EXP TRIM-54F attachment in MW4
The EXP TRIM-54F is a rear grip attachment (“Skeleton Grip”) that community sites list for one weapon: Signal 50. CODMunity lists a stat change on 1 of them; the largest is ADS speed −8% on the Signal 50 (better). It is in 1 popular build that CODMunity lists.
Community-reportedwzranked, ggranked, and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the EXP TRIM-54F
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 |
|---|---|---|---|
| Signal 50 | Sniper Rifle | ADS speed (moderate, better), ADS out speed (moderate, better), sprint to fire speed (moderate, better), vertical recoil (small, worse), horizontal recoil (small, worse), vertical gun kick (small, worse), horizontal gun kick (small, worse), and flinch received (small, worse) |
What the EXP TRIM-54F changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Signal 50 | ADS speed | 590 ms | 543 ms | −8% (better) |
| Sprint to fire speed | 283 ms | 260 ms | −8% (better) | |
| Vertical recoil | 19.8 | 21.0 | +6% (worse) | |
| Horizontal recoil | 8.4 | 8.9 | +6% (worse) |
Smaller changes are left out of the table: 4 other stats on the Signal 50.
How it ranks among rear grip attachments
Its largest change on each weapon, compared with the other rear grip attachments the source lists that stat for.
- Signal 50: its moderate ADS speed change (better) is the best of 2 rear grip attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the EXP TRIM-54F
CODMunity lists 1 popular build that use it, all for Multiplayer. The styles are Mobility. The same builds also use optic, muzzle, stock, and laser attachments.
| Weapon | Mode and style | Tier | Other attachments | Builder |
|---|---|---|---|---|
| Signal 50 | Multiplayer, Mobility | Very good | Optic: Cronen R808, Muzzle: FSS DES-Tac70, Stock: Cronen SN-PAD50, and Laser: XRK Clutch-LS | Open in the builder: Signal 50, Mobility |
Builds are community-reported and unverified.
Frequently asked questions
What does the EXP TRIM-54F do in MW4?
CODMunity lists 8 stat changes for it across 1 weapon: 3 better and 5 worse. The largest is ADS speed −8% on the Signal 50 (better).
Which weapons can use the EXP TRIM-54F?
Community sites list Signal 50. Activision has not published a compatibility list.
Is the EXP TRIM-54F in a popular build?
Yes. CODMunity lists it in 1 popular build, on Signal 50.