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RSR Part #: CMMG90CA2F3 Manufacturer Part #: 90CA2F3

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CMMG, MK9 Lower, SMG, Semi-automatic, 9MM, Black Finish, Includes Feed Ramps, Ejector, and Extended Bolt Catch


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

  • Forged 7075 T6 Aluminum
  • Accepts Standard Colt Pattern 9mm Magazines
  • Bolt Catch/Feed Ramp/Ejector Installed

Product Description

Combine this dedicated 9mm lower with a lower parts kit and buttstock kit to build your favorite lower group. Comes with 9mm bolt catch, feed ramp, and ejector installed.