“An ideal LMG for mobile fire support. Will dominate in close-quarters and keep enemies suppressed with a high firerate.”

| Damage | 26 |
| Rate of fire | 830 |
| Magazine | 100 |
| Hipfire | 34 | |
| Precision | 21 | |
| Control | 53 | |
| Mobility | 34 |
| Signature Weapon | Support |
| Unlock | Rank |
| Requirement | Rank 28 |
| Added in | 1.0.1.0 (Launch) |
6 patch notes mentioning the M123K, newest first. Each entry is the exact line from EA's Game Update notes.
| From | To | Change | |
|---|---|---|---|
| M123K | 670 m/s | 630 m/s | -5.97% |
| M123K | 55.9° | 47.7° | -14.7% |
| Change | |
|---|---|
| M123K | Reduced recoil to improve sustained-fire control and reinforce its role as a belt-fed Machine Gun. |