CMMG AR-15 Zeroed Lower Parts Kit with Ambi Safety Selector



Streamline your AR-15 build with this complete USA-made lower parts kit from CMMG. All components meet mil-specs for flawless operation, including the Zeroed Pistol Grip, crisply tuned Trigger Assembly, and ambidextrous 60°/90° Adjustable Safety. Color-coded for easy assembly.

Everything you need to finish your lower receiver in one convenient package.


  • 1x ZEROED Extended Bolt Catch AR15
  • 1x Bolt Catch
  • 1x Bolt Catch Plunger
  • 1x Bolt Catch Spring
  • 1x Bolt Catch Roll Pin
  • 1x ZEROED Trigger Guard
  • 1xTrigger Guard Screw
  • 1xTrigger Guard Roll Pin
  • 1x Trigger
  • 1x Trigger Spring
  • 1x Disconnector & Disconnector Spring
  • 1x Hammer & Hammer Spring
  • 2x Trigger/Hammer Retaining Pins
  • 1x ZEROED 60°/90° Adjustable Ambi Safety
  • 1x Safety Detent
  • 1x Safety Spring
  • 1x ZEROED Ambi Magazine Catch
  • 1x Magazine Catch Spring
  • 1x ZEROED Extended Magazine Release Button
  • 1x HD Pivot Pin w/Detent, & Spring
  • 1x HD Takedown Pin w/Detent, & Spring
  • 1x ZEROED Pistol Grip
  • 1x Grip Screw, & Washer
  • 1x Buffer Retainer
  • 1x Buffer Retainer Spring