https://www.22mods4all.com/5-56-nato-operator-series-16-nitride-builder-kit-1-8-twist-12-mlok-handguard/
PRODUCT DESCRIPTION

5.56.jpg

Best Use: Varmint Hunting / Mid Range Shooting

Specifications:

Caliber: 
  • 5.56 Nato
Upper Receiver: 
  • Stripped Upper Receiver
  • Upper Parts Kit
  • Charging Handle
  • ***BCG Not Included***
Barrel: 
  • 16" Nitride
  • Carbine Length Gas System
  • Gas Block
  • Roll Pin
  • 1/2x28 TPI Thread
  • 1: Twist Rate
Lower:
  • Lower Parts kit
  • ***Lower Receiver Sold Separately***
Muzzle Device:
  • A2 Flash Hider
Stock Kit:
  • M4 Stock Kit
  • Coil Spring
  • 2.5" Buffer
Handguard:
  • 12" Aluminum 
  • MLOK Style
  • Barrel Nut with Rail Attachment and Screws 
Material:
  • 7075 T6 Aluminum 
Color:
  • Black - Cerakote