Aero Precision Complete Upper Receiver, M4E1-T, 10in .300 Blackout Barrel, 9in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700302M4 840014601745

M4E1 Threaded 10" .300 Blackout Complete Upper Receiver w/ ATLAS S-ONE Handguard 9" M-LOK - $484.99 MPN#: APAR700302M4 ATLAS S-ONE Handguard Features: Front and rear picatinny rail Eliminated center of top rail for weight reduction Indexing grooves in 12:00 position for positive grip

Aero Precision M4E1 Threaded Barreled Upper Receiver .300 BLK Pistol Length - ATLAS S-ONE - 10" - $439.99 - M4E1 threaded upper receiver - Forged 7075-T6 aluminum - Assembled forward assist and dust cover - 9” ATLAS S-ONE M-LOK handguard - Hardcoat anodized - 10” .300 Blackout barrel -

M4E1 Upper, 10.5 inch 5.56 Barrel, 9'' M-LOK ATLAS S-ONE - $427.00 This barreled upper includes our new 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

Aero Precision 5.56 NATO M4E1 ATLAS S-ONE Complete Upper - $434.99 Description Aero Precision 5.56 NATO M4E1 ATLAS S-ONE Complete Upper Available in 10.5″ Carbine or 16″ Mid-Length Aero Precision 5.56 NATO M4E1 ATLAS S-ONE Complete Upper is the most efficient way to

Aero Precision M4E1 Threaded Barreled Upper Receiver 5.56 Carbine ATLAS S-ONE 11.5" - $373.99 Note: This barreled upper receiver assembly has a barrel length under 16” and is therefore subject to all NFA rules and regulations. Know your local laws before purchasing. This Aero Precision M4E1