Centurion Arms CM4 5.56 Forged AR-15 Lower Receiver

Manufactured by Centurion Arms
Manufactured by Centurion Arms
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



The Centurion Arms CM4 5.56 Forged AR-15 Stripped Lower Receiver is made to strict military standards for proper fit and function with the upper receiver and standard Mil-Spec components. Forged from 7075-T6 aluminum and type III class 2 hardcoat anodized to military standards for a long service life of reliable use. All sharp edges have been de-burred by hand for a smooth premium finish and all dimensions are inspected for accuracy. The Centurion Arms CM4 Stripped AR-15 Lower Receiver is what you need to start your next build. The safety selector pictograph markings are designed for 90° safeties and is compatible with ambidextrous safeties as well as other Mil-Spec and aftermarket components. All components, material, and packaging are made in the United States.

  • Forged from 7075-T6 aluminum
  • Class III Type 2 hardcoat anodized black
  • Compatible with Mil-Spec parts
  • Fully de-burred by hand
  • Dimensional accuracy inspected
  • 90° safety selector markings
  • Multi-caliber
  • Made in the U.S.A.
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BrandCenturion Arms
Caliber MarkingMulti-Caliber
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

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