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Mfg Item #: 00-40008-BLK
Specifications: - Caliber 5.56 NATO (.223 REM) -16" Barrel with a 1:7 Twist Rate - M4 Style Handguard - Flip-UP Rear Sight - Salt Bath Nitride Bolt Carrier Group -MPI Tested Bolt - A2 Birdcage Flash Hider 1/2 x 28 Features: -The gas system is carbine length - 7075 Forged A4 Flat top - F-Marked sight base for sight alignment, providing correct carbine sight alignment Proudly Made In U.S.A.
| Model | M4 Flat Top AR15 Complete Upper Assembly |
|---|---|
| Casing | Black |
| Finish | Black |
| Caliber | 5.56 NATO |
| Barrel Type | Salt Bath Nitride |
| Barrel Length | 16" |
