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  1. Aero Precision M4E1 Complete Upper, 20" 6.5 Grendel SS Barrel, EM-15 Gen 2 HG - FDE Cerakote
    M4E1 Enhanced 20" 6.5 Grendel Complete Upper Receiver
  2. Aero Precision M4E1 Threaded Complete Upper, 22" .224 Valkyrie barrel, ATLAS R-ONE 15" M-LOK HG, FDE Cerakote
    M4E1 Threaded 22" .224 Valkyrie Complete Upper Receiver w/ ATLAS R-ONE Handguard
  3. M4E1 Threaded Complete Upper, 22" .224 Valkyrie SSĀ Barrel, ATLAS S-ONE 15" M-LOK HG - FDE Cerakote
    M4E1 Threaded 22" .224 Valkyrie Complete Upper Receiver w/ ATLAS S-ONE Handguard
  4. M4E1-T Complete Upper, 11.5" 5.56 Government Barrel, 9" ATLAS S-ONE M-LOK HG, VG6 Delta, BCG, Ambi CH - FDE Cerakote
    M4E1 Threaded Complete Upper, 11.5" 5.56 Government Barrel, 9" ATLAS S-ONE M-LOK HG, VG6 Delta, BCG, Ambi Charging Handle
  5. M4E1-T Complete Upper, 10.5" 5.56 Government Barrel, 9" ATLAS S-ONE M-LOK HG, VG6 Delta, BCG, Ambi CH - FDE Cerakote
    M4E1 Threaded Complete Upper, 10.5" 5.56 Government Barrel, 9" ATLAS S-ONE M-LOK HG, VG6 Delta, BCG, Ambi Charging Handle

5 Items

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per page
Filter by
Sorting Options
  • Position
  • Product Name
  • Price
  • Barrel Length
  • Series
  • With Forward Assist
Low to high