https://www.22mods4all.com/zaviar-firearms-5-56-nato-operator-series-10-5-nitride-upper-receiver-1-7-twist-12-mlok-handguard-od-green/

PRODUCT DESCRIPTION

5.56.jpg

Best Use: Varmint Hunting / Mid Range Shooting

Specifications:

Caliber: 
  • 5.56 Nato
Upper Receiver: 
  • Assembled Upper Receiver
  • ***BCG and Charging Handle Not Included***

Barrel: 
  • 10.5" Nitride
  • Carbine Length Gas System
  • Gas Block
  • Roll Pin
  • 1/2x28 TPI Thread
  • 1:7 Twist Rate
Lower:
  • N/A
Muzzle Device:
  • Smooth Black Flash Can
Stock Kit:
  • N/A
Handguard:
  • 12" Aluminum 
  • MLOK Style
  • Barrel Nut with Rail Attachment and Screws 
Material:
  • 7075 T6 Aluminum 
Color:
  • OD Green - Cerakote