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  1. M4E1 Complete Upper, 14.5" 5.56 M4 Carbine Barrel, EM-12 Gen 2
    M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver
  2. Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, ATLAS R-ONE 12" M-LOK HG - Anodized
    M4E1 Threaded 14.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS R-ONE Handguard
  3. Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid Barrel, ATLAS R-ONE 12" M-LOK HG - Anodized
    M4E1 Threaded 14.5" 5.56 Mid-Length Complete Upper Receiver w/ ATLAS R-ONE Handguard

4 Items

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