12.9" Chrome Lined 5.56 NATO Upper Assembly
 
The 12.9" upper assembly features a Plan B/Rearden compatible muzzle device, Gas Blaster charging handle, and tuned chrome lined barrel that is optiumized for both suppressed and unsuppressed shooting when using quality factory ammunition and the correct buffer system. Each upper assembly goes through a strict quality control process to insure proper function and is backed by our unlimited lifetime warranty.
 
UPPER RECEIVER 
7075-T6 Forged Aluminum A3 with Forward Assist and Dust Cover
 
RAIL SYSTEM 
12" Lightweight Modular MK5 M-LOK 
Anti Rotation Tabs 
Barrel Nut Interlock System for securly using IR devices and other accessories
 
BARREL 
12.9” 5.56 NATO
4150 CrMoV Barrel Material
Chrome lined bore and chamber
Mid Length Gas System 
1:7 Twist Rate
 
MUZZLE DEVICE 
Night Howler Flash Hider compatible with Plan B tapered suppressor mounting system
 
BOLT CARRIER GROUP 
8620 Carrier Material
C-158 Bolt Material (MPI/HP Tested)
Magnesium Phosphate 
Hard Chrome plated carrier and gas key bore
Hard Chrome Plated Firing Pin
Grade 8 Bolts and Properly Staked Gas Key
 
GAS SYSTEM 
Low Profile Quad Locking Gas Block
 
CHARGING HANDLE 
Gas Blaster Ambidextrous Charging Handle
Machined from 7075-T6 aluminum 
Raised rear gas defllector lip
Reinforced section where it interfaces with the gas key
Ideal for suppressed shooting
 
Cerakote Colors:
-Wolfpack Bronze 
-OD Green 
-Magpul FDE
 
**Current lead time estimates for this product can be viewed at the top of your cart page**