
Aero Precision M4E1 Threaded Barreled Upper Receiver .300 BLK Pistol Length - ATLAS S-ONE - 8"
Aero Precision M4E1 Threaded Barreled Upper Receiver .300 BLK Pistol Length - ATLAS S-ONE - 8" SKU: APAR700301M1 MPN: APAR700301M1 DETAILS Note: This barreled upper receiver assembly has a barrel length under 16” and is subject to all NFA rules and regulations. Know your local laws before purchasing. The Aero Precision Upper does not include a BCG or charging handleThis Aero Precision M4E1 Threaded upper receiver group comes completely assembled with an 8” .300 Blackout barrel and a pistol-length gas system to ensure reliable function. Forged from 7075-T6 aluminum, this upper receiver features a billet design at a much lower cost and looks great when paired with the M4E1 lower receiver. The ATLAS S-ONE, free float handguard, is made from the same material with the same hard coat anodized finish and features a lightened profile with M-LOK slots for accessories. This .300 Blackout AR-15 barreled upper receiver assembly does not include a BCG or charging handle but does include t