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RSR Part #: FMKGAR1E Manufacturer Part #: FMKGAR1E

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FMK Firearms, AR-15 Lower, Semi-automatic, Black Finish, Polymer


WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

  • Superior Strength
  • Unmatched Durability
  • Extremely Lightweight
  • Custom Engraving

Product Description

This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight at only 4.3oz. The AR1 extreme is by far the strongest composite polymer lower on the market today.