Aero Precision M5E1 308 Win/7.62x51mm NATO 18" 4150 Chrome Moly Vanadium Steel Hard Coat Anodized Finish Black APAR308554M25

This Complete Upper includes Aero Precision's Gen 2 Enhanced Handguard. Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a profile for the picatinny top rail.

• Aero Precision
• Direct Gas Impingement Platform Upper
• .308 Winchester
• 18" Chrome Moly Vanadium Steel Barrel (QPQ Finish)
• 1:10" Twist Rate
• Barrel Threaded 5/8x24
• Gas Block Journal .750
• Rifle Length Gas System
• DPMS Barrel Extension
• HP/MPI Tested
• Gen 2 Enhanced One Piece Free Float M-LOK Compatible Hand Guard
• Upper Receiver forged from 7075-T6 Aluminum
• M4 Feedramps
• .2795" Takedown Pins
• Accepts standard AR .308 components
• Forward Assist/Port Door Installed
• Hard Coat Anodized Finish
• Matte Black
• Does NOT Include: Complete Bolt Carrier Group or Charging Handle
• Fits: Aero Precision M5 (.308 Win) Style Lower Receivers
• Other .308 AR Pattern Style Lower Receivers with .2795" Takedown Pins