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Mfg Item #: M48913.7
The M4-89 features a combat grade barrel, A5 buffer system, Liberty Fighting Trigger, Ambi Liberty Charging Handle, ambi Quick Selector and B5 furniture, NOX Flash Hider which is pinned and welded.
| Type | Semi-Complete |
|---|---|
| Twist | 1:7" |
| Sights | None, Optic Ready |
| Caliber | 5.56x45mm NATO |
| Handguards | M-LOK Free-Float |
| Barrel Finish | Black Nitride |
| Barrel Length | 13.70" |
| Barrel Material | 4150 Chrome Moly Vanadium Steel |
| Handguard Finish | Black Hard Coat Anodized |
| Barrel Description | Combat Grade |
| Barrel Length Range | 13" to 13.99" |