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Mfg Item #: 90B1AA2
9mm M4 CMMG Complete Upper. Featuring Mil-Spec A3 Receiver, 4140 WASP Barrel with 1:10 twist. The 9mm ramped bolt uses a standard AR-15 or M16 hammer. Do not use with the dedicated 9mm hammer. It also features "F" marked front sight.
| Type | Complete Gas Impingement |
|---|---|
| Twist | 1:10" |
| Series | Upper Complete |
| Sights | A2 Front |
| Caliber | 9mm Luger |
| Handguards | M4 Synthetic |
| Barrel Finish | Black |
| Barrel Length | 16" |
| Barrel Material | WASP Treated 4140 Chrome-Moly Steel |
| Handguard Finish | Black |
| Barrel Description | M4 Profile |
| Barrel Length Range | 16.00" to 17.99" |
| Receiver Description | A3 |