M4E1-T Complete Upper, 14.5" 5.56 Mid BRL w/Pinned Epsilon SL, 12" M-LOK AR15 ATLAS S-ONE HG, Anodize
M4E1-T Complete Upper, 14.5" 5.56 Mid BRL w/Pinned Epsilon SL, 12" M-LOK AR15 ATLAS S-ONE HG, Anodize, M4E1 Threaded ATLAS S-ONE 5.56 Complete Uppers include the 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. The 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.All compl