Aero Precision M4E1 Builder Set w/ 9″ M-LOK ATLAS R-ONE Handguard – Black

$328.47 $279.20

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This package deal includes the pieces you need to start building your own M4E1 (AR15) Rifle, including a M4E1 Threaded Upper Receiver, AR15 ATLAS R-ONE 9″ M-LOK Handguard and a M4E1 Stripped Lower Receiver.


  • Aero Precision M4E1 Stripped Lower Receiver
  • Aero Precision M4E1 Threaded Upper Receiver
  • Aero Precision ATLAS R-ONE 9″ M-LOK Handguard
  • All 3 pieces are finished in mil-spec Anodized Black

Additional information

Weight 2.8 lbs
Dimensions 20 × 8 × 4 in


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