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  1. Aero Precision M4E1 Threaded Complete Upper, 16" 6.5 Grendel SS Barrel, ATLAS S-ONE 15" M-LOK HG - Anodized Black
    M4E1 Threaded 16" 6.5 Grendel Complete Upper Receiver w/ ATLAS S-ONE Handguard
  2. Aero Precision M4E1 Threaded Complete Upper, 16" 6.5 Grendel SS Barrel, ATLAS R-ONE 15" M-LOK HG - Anodized
    M4E1 Threaded 16" 6.5 Grendel Complete Upper Receiver w/ ATLAS R-ONE Handguard
    Rating:
    100%

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