Bushmaster M4 Flat Top AR15 Complete Upper Assembly - Black | 5.56NATO | 16" Barrel | A2 Handguard | A2 Flash Hider
1 Remaining
SKU
BM-00-40008-BLK
The venerable brand brings the M4 upper with the addition of a Flip-Up Rear sight. Perfected for competition, home defense, and recreational shooting.
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.
| SKU | BM-00-40008-BLK |
|---|---|
| UPC | 604206200259 |
| MPN | 00-40008-BLK |
| Manufacturer | Bushmaster Firearms |
| Model | M4 Flat Top AR15 Complete Upper Assembly |
| Weight | 4.650000 |
| Caliber | 5.56 NATO |
| Condition | New |
| Material | Aluminum, Assorted |
| Fits | AR-15 |
| Upper Type | Complete |
| Operating System | Direct impingement |
| Barrel Length | 16" |
| Twist Rate | 1:7" |
| Barrel Type | Salt Bath Nitride |
| Barrel Thread Pitch | 1/2x28 |
| Forward Assist | Yes |
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