COMPLETE UPPER 16" M4 FLAT TOP
| Barrel | 16" |
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| Sights | A2 Front Sight |
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| Caliber | 223 Rem | 5.56 NATO |
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| Receiver | A3 Flat Top |
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| Rate Of Twist | 1-in-9" |
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| Additional Feature 1 | M4 Barrel |
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| Additional Feature 2 | Carbine Length Handguard |
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| Additional Feature 3 | Bolt Carrier Group |
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Determined at checkout.
