Aero Precision M4E1 withAtlas S-One M-Lok 5.56mm NATO 16in Black Anodized Semi Automatic Modern Sporting Rifle - 30+1 Rounds - The Aero M4E1 Rifle is built on Aero's Enhanced Series Upper Receiver. Featuring a custom integrated upper receiver and handguard system, the shooter is provided a light-weight, free-floated rigid design. Superior performance and accuracy is the result in every M4E1 Complete Rifle.
