Aero Precision M4E1-E Complete Upper Receiver

This complete upper receiver from Aero Precision includes all the essentials to finish off your next AR-15 build. The 15″ M-LOK handguard provides plenty of room for all the attachments you need, and the 16″ 5.56 NATO chambered barrel combined with a mid-length gas system should handle any ammunition in either 5.56 NATO or .223 Remington.

Parts List:

• M4E1 Enhanced Assembled Upper Receiver
• 15″ Enhanced M-LOK Handguard
• 16″ 5.56 Mid-Length CMV Barrel
• Low-profile Gas Block and Mid-length Gas System
• Standard AR-15 Charging Handle
• 5.56 Black Nitrided Bolt Carrier Group
• A2 Birdcage Flash Hider

Product comes already assembled, only requiring installation with a completed lower receiver by inserting the front and rear takedown pins after properly mounting the upper receiver.