Scorpion Rifle Works 7.5" 556  complete upper receiver

Scorpion Rifle Works 7.5" 556 complete upper receiver

Features

* Scorpion Rifle Works billet upper receiver

* Scorpion Rifle Works lightweight 7.75" handguard (Barrel recesses into handgaurd)

* Scorpion Rifle Works .750 heavy duty, low profile, gas block

* Pistol length Enhance melonite gas tube

* Scorpion Rifle Works 7.5" 556 (Pistol gas system) 1/7 twist