CMMG's RESOLUTE lineup is engineered with purpose for those who refuse to compromise on quality. This RESOLUTE upper comes with a 16-inch barrel and is designed for balance, accuracy and maneuverability.
| UPC | 816422029662 | Manufacturer | CMMG |
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| Manufacturer Part # | 57B3FA4 | Model | Mk57 |
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| Type | Upper | Caliber | 5.7X28MM |
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| Barrel Length | 16.1" | Color | Black |
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| Description | Upper Only | Fit | AR Rifles |
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| Subcategory | Complete Upper Receivers |
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