Bushmaster

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

$564.99

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.