Aero Precision M4E1 Threaded 16" .223 Wylde Fluted Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black

Aero Precision M4E1 Threaded 16" .223 Wylde Fluted Complete Upper Receiver with ATLAS R-ONE Handguard - Anodized Black This complete upper includes Aero Precision's new ATLAS R-ONE Handguard! The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Aero Precision's proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. This complete upper does not include BCG or Charging Handle. Includes: M4E1 Threaded Assembled Upper Receiver 15" ATLAS R-ONE Handguard 16" .223 Wylde Fluted Mid-Length Stainless Steel Barrel Low Profile Gas Block and Mid-Length Gas Tube Product comes assembled M4E1 Threaded Upper Receiver Features: New enhanced forging that gives the upper receiver a "billet look" New picatinny profile that blends seamlessly with our Enhanced Series Handguards M4 Feedramps .250 takedown pin holes Laser engraved T-marks Includes port door and forward assist installed ATLAS R-ONE Handguard Features: Full top picatinny rail for optional attachments Quick disconnect sling socket at the 3, 6 and 9 o'clock positions Compatible with low profile gas blocks 1.3" Inside diameter 1.5" Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 16" .223 Fluted Stainless Steel Mid-Length Barrel Features: .223 Wylde 16" Mid-Length Barrel, 1/8 Twist 416R Stainless Steel Bead Blasted Finish .750 gas block journal Mid-length gas system M4 Feed Ramp Extension HP and MPI tested Standard A2 flash hider ALL NEW Fluted Design Barrel Weight: 27 oz