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August Builder Sets August Builder Sets

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  1. Aero Precision M4E1 Complete Upper, 10.5" 5.56 Barrel w/ FSB, EK-7 Gen 2 Handguard - FDE Cerakote
    M4E1 Enhanced 10.5" 5.56 Complete Upper Receiver w/ Pinned FSB
    Rating:
    100%
  2. Aero Precision M4E1 10.5" 5.56 EK9 Complete Upper Receiver
    M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver
    As low as $434.99 Regular Price $434.99
    Rating:
    99%
  3. Aero Precision M4E1 Complete Upper, 10.5" 5.56 Barrel, EK-9 Quantum Handguard FDE
    M4E1 Enhanced 10.5" 5.56 Barrel Quantum Handguard Complete Upper Receiver
    As low as $329.99 Regular Price $329.99
    Rating:
    100%
  4. Aero Precision M4E1 Threaded Complete Upper, 10.5" 5.56 Barrel, 9" KeyMod ATLAS S-ONE Handguard - FDE Cerakote
    M4E1 Threaded 10.5" 5.56 Complete Upper Receiver w/ ATLAS S-ONE Handguard
    As low as $449.99 Regular Price $449.99
    Rating:
    92%
  5. M4E1 Threaded Complete Upper, 10.5" 5.56 Barrel, ATLAS R-ONE 9" KeyMod HG - FDE Cerakote
    M4E1 Threaded 10.5" 5.56 Complete Upper Receiver w/ ATLAS R-ONE Handguard
    As low as $449.99 Regular Price $449.99
  6. new
    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

6 Items

View as Grid List
per page
Filter by
Sorting Options
  • Position
  • Product Name
  • Price
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  • Series
  • With Forward Assist
Low to high