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RSR Stock #: SCOSU4766
Manufacturer Part #: SU4766
UPC: 816413027363

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SilencerCo, SCO15, Semi-automatic, Stripped Lower Receiver, 556NATO, Billet 7075-T6, Black Anodized Finish


WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information:


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  • Integral ambidextrous anti-rotation QD sling cups at rear of
  • Proprietary ambidextrous bolt catch/release (included)
  • Enlarged integral trigger guard
  • Flared magazine well
  • Designed for use with standard mil spec lower parts kit and
    buffer assembly.
  • 45 to 90 degree fire selector window for short throw fire
  • Rear tensioner bolt hole (bolt not included).
  • Machined in-house by SilencerCo out of 7075 Billet Aluminum

Product Description

The SilencerCo AR-15 Lower Receiver is made from billet 7075-T6 aluminum, it is precision machined for compatibility with all of your preferred parts. The lower receiver is finished in a type III hardcoat anodize for added durability and corrosion resistance. The new design includes a proprietary ambidextrous bolt catch, integrated enlarged trigger guard, and ambidextrous multi-position sling swivels as well as various other features. With the SilencerCo Billet AR-15 receiver, you get the materials, finish, and features you want and need to complete your dream AR-15 build.