Bushmaster M4 Flat Top AR15 Complete Upper Assembly - Black | 5.56NATO | 16" Barrel | A2 Handguard | A2 Flash Hider

3 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. 

More Information
SKUBM-00-40008-BLK
UPC604206200259
MPN00-40008-BLK
ManufacturerBushmaster Firearms
ModelM4 Flat Top AR15 Complete Upper Assembly
Caliber5.56 NATO
ConditionNew
MaterialAluminum, Assorted
FitsAR-15
Upper TypeComplete
Operating SystemDirect impingement
Barrel Length16"
Twist Rate1:7"
Barrel TypeSalt Bath Nitride
Barrel Thread Pitch1/2x28
Forward AssistYes
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