Rock River Arms
Rock River Arms
Contact us

Uppers · AR0388B

Mid-Length A4 Upper Half, with Gas Block Sight Base

Mid-Length A4 Upper Half, with Gas Block Sight BaseOpen full-size photo

Description

.223/5.56mm

With Gas Block Sight Base

Specifications

  • CALIBER:

    5.56mm NATO Chamber for 5.56mm and .223 Caliber

  • UPPER RECEIVER:

    Forged A4

  • BARREL:

    16" Chrome Moly Lightweight, 1:9 Twist

  • GAS SYSTEM:

    Mid-Length Gas System

  • MUZZLE DEVICE:

    A2 Flash Hider / 1/2–28 Thread

  • GAS BLOCK:

    Gas Block with Receiver Height Sight Rail

  • HANDGUARD:

    Mid-Length Handguard

  • INCLUDES:

    Bolt Carrier Group and Charging Handle Assembly