Product Overview
Scorpion Rifle Works complete 15" 556 upper receiver
Features
* Scorpion Rifle Works billet upper receiver
* Scorpion Rifle Works lightweight 15 inch handguard
* Scorpion Rifle Works .750 heavy duty, low profile, gas block
* mid length Enhance melonite gas tube
* Rosco Manufacturing Bloodline 556 barrel (mid length gas system) 1/7 twist
