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Receiver Extension and Stock Kit, RipStock, Standard



AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.

Receiver Extension and Stock Kit, RipStock, Standard

The CMMG® RipStock® is a revolutionary, retractable buttstock engineered for lightning-fast deployment to your personal setting. With our Fastback® Technology, you simply pull straight back to extend the brace. No locking tabs to release or bind. P3 (Personal Position Preset) offers multiple customizable length presets to ensure the stock extends to your personal position every time it is deployed. Simply adjust the indexing screw on the buffer tube to customize your preset.

Aircraft grade aluminum construction offers superior durability without adding unnecessary weight, and a premier Cerakote finish let you customize the color to fit the look of your AR. Backed by CMMG’s Lifetime Quality Guarantee.

Kit Includes:

  • RipStock
  • Fastback 6-position Receiver Extension (Buffer Tube)
  • Castle Nut
  • Ambi Sling Mount Receiver Endplate
  • AR15 Carbine Buffer
  • AR15 Carbine Action Spring


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