BL-A5 Comp attachment in MW4
The BL-A5 Comp is a muzzle attachment (“Balanced Comp”) that community sites list for 2 weapons: Astaroth .57 and Signal 50. CODMunity lists a stat change on 2 of them; the largest is vertical recoil −8% on the Astaroth .57 (better). No popular build that CODMunity lists uses it.
Community-reportedggranked and CODMunity, read . Unverified, not Activision data.
Weapons that can equip the BL-A5 Comp
Activision publishes no compatibility list; 2 community sources report these 2 weapons. No weapon level is reported.
| Weapon | Class | Weapon level | Stats with a listed change |
|---|---|---|---|
| Astaroth .57 | Sniper Rifle | vertical recoil (moderate, better), horizontal recoil (moderate, better), vertical gun kick (moderate, better), horizontal gun kick (moderate, better), ADS out speed (small, worse), and ADS speed (minor, worse) | |
| Signal 50 | Sniper Rifle | vertical recoil (moderate, better), horizontal recoil (moderate, better), vertical gun kick (moderate, better), horizontal gun kick (moderate, better), ADS speed (minor, worse), and ADS out speed (minor, worse) |
What the BL-A5 Comp changes
Percent changes are relative to the base value with nothing attached (CODMunity, read November 4, 2026).
| Weapon | Stat | Base | With it | Change |
|---|---|---|---|---|
| Astaroth .57 | Vertical recoil | 14.4 | 13.2 | −8% (better) |
| Horizontal recoil | 4.1 | 3.8 | −8% (better) | |
| ADS speed | 603 ms | 615 ms | +2% (worse) | |
| Signal 50 | Vertical recoil | 19.8 | 18.2 | −8% (better) |
| Horizontal recoil | 8.4 | 7.7 | −8% (better) | |
| ADS speed | 590 ms | 602 ms | +2% (worse) |
Smaller changes are left out of the table: 3 other stats on the Astaroth .57 and 3 other stats on the Signal 50.
Changes across weapons
The stats it changes on 2 weapons, with the lowest and highest change.
| Stat | Weapons | Lowest change | Highest change | Verdicts |
|---|---|---|---|---|
| Horizontal recoil | 2 | −8% | −8% | 2 better, 0 worse |
| Vertical recoil | 2 | −8% | −8% | 2 better, 0 worse |
| ADS speed | 2 | +2% | +2% | 0 better, 2 worse |
| Horizontal gun kick | 2 | −8% | −8% | 2 better, 0 worse |
| Vertical gun kick | 2 | −8% | −8% | 2 better, 0 worse |
| ADS out speed | 2 | +2% | +3% | 0 better, 2 worse |
How it ranks among muzzle attachments
Its largest change on each weapon, compared with the other muzzle attachments the source lists that stat for.
- Astaroth .57: its moderate vertical recoil change (better) is in the upper half of 4 muzzle attachments.
- Signal 50: its moderate vertical recoil change (better) is in the upper half of 4 muzzle attachments.
Pros and cons the sources list
None reported, which is different from having none.
Popular builds that use the BL-A5 Comp
No popular build listed by CODMunity uses the BL-A5 Comp. That says nothing about how it performs; most listed attachments are in no popular build.
Frequently asked questions
What does the BL-A5 Comp do in MW4?
CODMunity lists 12 stat changes for it across 2 weapons: 8 better and 4 worse. The largest is vertical recoil −8% on the Astaroth .57 (better).
Which weapons can use the BL-A5 Comp?
Community sites list Astaroth .57 and Signal 50. Activision has not published a compatibility list.
Is the BL-A5 Comp in a popular build?
No. None of the popular builds that CODMunity lists uses it.