From: $359.00
The 5.56 Custom Upper Build Kit is perfect for DIY builders who like to assemble themselves and those who just want to pin a new upper on their lower. Designed as an à la carte package, you can choose each individual component to fit your style and needs. The base price includes the following:
- Rosco Barrel – Black Nitride
- 16” M4 Profile 5.56 NATO
- 4150 CMV
- Carbine or Mid Length Gas
- Grendel Hunter M4E1 Upper – Black Anodized
- AERO Precision Manufactured
- Grendel Hunter Logo
- Mil-Spec Forward Assist & Dust Cover
- 12″ MLOK Grendel Hunter Hanguard – Black Anodized
- Steel Barrel Nut
- Mounting Hardware
- Low Profile Gas Block – Black Nitride
- Gas Tube (Length dependent on barrel selected) – Stainless Steel
- A2 Flash Hider and Jam Nut – Black Nitride
NOTE: The 11″ handguards will cover a Carbine length gas system, but not a Mid Length. Other lengths will cover both.
Customize your kit with the options below