Rock River Arms National Match M4 Upper w/ Gas Block Sight Base
Code: AR0798
$825.00
Product Description
•••••
Description: Rock River Arms National Match M4 Upper w/ Gas Block Sight Base. The National Match M4 Upper Receiver Assembly by Rock River Arms is designed to extract every bit of functional capability out of your competition AR-15 project. This assembly features a 20" stainless steel Heavy Match barrel chambered in .223 Wylde, 12" A2-style polymer handguard, .750" gas block M1913 sight base with sling swivel, and a complete bolt carrier group.
Features:
- Forged A4 Upper Receiver
- 12" A2-style Handguard
- Free Floating
- High-Temp Thermo Mold
- Barrel
- 20" Length
- .223 Wylde Chamber
- Heavy Match
- Stainless Steel
- Cryogenically Treated
- 1:8 ROT
- Rifle Length Gas System
- 1/2 x 28" TPI Muzzle
- Small Components
- .750" Gas Block Sight Base
- Sling Swivel
- Rifle-Length Gas Tube
- Forward Assist Assembly
- Ejection Port Cover Assembly
- A2 Flash Hider
- Charging Handle
- Complete Bolt Carrier Group
Manufacturer: Rock River Arms
PRODUCT SPECIFICATIONS:
- Barrel Length: 20"
- Barrel Thread Pitch: 1/2" x 28 TPI
- Brand: Rock River Arms
- Caliber: 5.56x45mm,.223 Rem
- Finish / Color: Black
- Firearm Type: Rifle
- Material: Steel,Aluminum
- Models Fit: AR-15
Specifications
•••••
- Barrel Length: 20"
- Barrel Thread Pitch: 1/2" x 28 TPI
- Brand: Rock River Arms
- Caliber: 5.56x45mm,.223 Rem
- Finish / Color: Black
- Firearm Type: Rifle
- Material: Steel,Aluminum
- Models Fit: AR-15
