AERO PRECISION

This complete upper includes our ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind providing the perfect addition to your lightweight build. Our 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. - - Includes: - M4E1 Threaded Assembled Upper Receiver - 10.3 M-LOK ATLAS S-ONE Handguard - 12.5 5.56 Government Profile CMV Barrel Carbine Length - Low Profile Gas Block and Carbine Length Gas Tube - AR15 A2 Birdcage Flash Hider - Product comes assembled - This complete upper does not include BCG or Charging Handle. - - 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 - Learn More about our NEW ATLAS Hanguards - - 12.5 5.56 Barrel Features: - 5.56 Nato 12.5 Barrel 1/7 twist 4150 CrMoV QPQ gas port drilled - .750 gas block journal - Carbine length gas system .0785 gas port - M4 Feed Ramp Extension - HP and MPI tested - Standard A2 flash hider