Muzzles are a type of weapon attachment in Call of Duty: Modern Warfare 3 (MW3 2022). Read on for a complete list of muzzle attachments, including how to unlock each of them.
| Attachment | How to Unlock |
|---|---|
| TZL-90 V3 | ・Get the TAQ-M to Level 15. |
| ZLR Talon 5 | ・Get the TAQ-M to Level 22. |
| Echoline GS-X | ・Get the M4 to Level 3. ・Get the TAQ-V to Level 16. |
| C400 Door Knocker | ・Get the M16 to Level 5. |
| Corvus Slash Gen. 2 | ・Get the TAQ-56 to Level 5. |
| Echoless-80 | ・Get the TAQ-56 to Level 14. |
| RF Crown 50 | ・Get the TAQ-56 to Level 16. |
| GL Clear Breach | ・Get the TAQ-V to Level 12. |
| Tempus GH50 | ・Get the TAQ-V to Level 14. |
| FTac Castle Comp | ・Get the 556 Icarus to Level 10. |
| FTac Dreadnought | ・Get the FTAC Recon to Level 5. |
| Shred CP90 | ・Get the FTAC Recon to Level 11. |
| Demon Helix T7 | ・Get the FTAC Recon to Level 19. |
| XTen Razor Comp | ・Get the FSS Hurricane to Level 5. |
| XRK Knockout Breach | ・Get the FSS Hurricane to Level 13. |
| Lockshot KT85 | ・Get the RPK to Level 9. |
| Kastovia DX90 | ・Get the Kastov 762 to Level 2. |
| TA Hul-Breach KL | ・Get the Kastov 762 to Level 12. |
| XTen Havoc 90 | ・Get the Kastov 545 to Level 8. |
| VLK Koloss Flash Hider | ・Get the Kastov 545 to Level 16. |
| Gauge-9 Mono | ・Get the Kastov-74u to Level 17. |
| AVR-T90 Comp | ・Get the Vaznev-9K to Level 4. ・Get the Vaznev-9K to Level 4. |
| EXF Huntress-90 | ・Get the Minibak to Level 7. |
| Polarfire-S | ・Get the Lachmann-762 to Level 5. |
| Komodo Heavy | ・Get the Lachmann-556 to Level 18. |
| Broadhead-3DP | ・Get the Lachmann-556 to Level 6. |
| ZULU-60 | ・Get the SP-R 208 to Level 3. |
| SAKIN Tread-40 | ・Get the STB 556 to Level 4. |
| Cronen OP44 | |
| XTen Ported 290 | ・Get the HCR 56 to Level . |
| FSS Covert V | ・Get the HCR 56 to Level . |
| Harbinger D20 | ・Get the STB 556 to Level 18. |
| Silentfire XG6 | |
| Dark KX30 | ・Get the STB 556 to Level 15. |
| TY-LR8 | ・Get the SA-B 50 to Level 17. |
| Ported DZ38 | |
| Bruen Agent 90 | |
| Nilsound 90 | |
| XRK Kraken | |
| SA Schalldampfer 99 | |
| Cronen Dark KX30 | ・Get the LM-S to Level 9. |
| Bryson Improved Choke | ・Get the Bryson 800 to Level 4. |
| Eight-Point Flash Hider | ・Get the EBR-14 to Level 4. |
| Husher-65 Silencer | ・Get the SO-14 to Level 16. |
| Bore-490 | ・Get the SO-14 to Level 14. |
| Talon Sixteen | ・Get the Lockwood Mk2 to Level 2. |
| FSS VMW Flash Hider | ・Get the Basilisk to Level 4. |
| Spiral V3.5 Flash Hider | ・Get the PDSW 528 to Level 7. |
| XTen RR-40 | |
| Forge DX90-F | ・Get the MX9 to Level 15. |
| Singuard MKV | |
| XTen Black Kite | |
| Bruen Pendulum | |
| XRK Sandstorm | |
| Bruen Cubic Comp | |
| FOX-202 Flash Hider | |
| TA Hul-Breach | |
| Shikra Silencer |
Slightly increased aim down sight penalty for Flash Hider, Compensator, and Muzzle Break types.