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  1. Aero Precision M4E1 Threaded 18" 6.5 Grendel Complete Upper Receiver w/ ATLAS R-ONE Handguard
    M4E1 Threaded 18" 6.5 Grendel Complete Upper Receiver w/ ATLAS R-ONE Handguard
  2. Aero Precision M4E1 Threaded 20" 6.5 Grendel Complete Upper Receiver w/ ATLAS R-ONE Handguard
    M4E1 Threaded 20" 6.5 Grendel Complete Upper Receiver w/ ATLAS R-ONE Handguard
  3. Aero Precision M4E1 Threaded 20" .224 Valkyrie Complete Upper Receiver w/ ATLAS S-ONE Handguard
    M4E1 Threaded 20" .224 Valkyrie Complete Upper Receiver w/ ATLAS S-ONE Handguard

25 Items

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