Geissele Automatics Ultra Duty AR-15 Lower Parts Kit – Black


Available on backorder




The Geissele Automatics Ultra Duty AR-15 Lower Parts Kit comes with everything you need to build out your lower receiver. However, it comes with Geissele’s selection of high-quality parts that give you a slight advantage over standard Mil-Spec parts. First, it features the Geissele Ambidextrous safety selector allowing you to manipulate your firearm from the right or left hand side. The next upgrade is the Maritime extended bolt catch that makes dropping the bolt much faster and easier. The trigger guard is machined out of aluminum and is enlarged giving you more room to use the trigger if you are wearing gloves. Additional improvements are the textured takedown pins and magazine release. The Geissele Ultra Duty AR-15 Lower Parts Kit is a great way to build out your lower receiver without having to pick every single part.

Kit Includes:

  • Maritime Bolt Catch
  • Bolt Catch Plunger
  • Bolt Catch Spring
  • Bolt Catch Roll Pin
  • Mag Release
  • Textured Billet Mag Release Button
  • Mag Release Spring
  • Buffer Retainer Spring
  • Ambidextrous Safety
  • Buffer Retainer
  • Safety Detent Spring
  • Safety Detent
  • Enlarged Billet Trigger Guard
  • Trigger Guard Roll Pin
  • Takedown Detent Springs
  • Takedown Detents
  • Textured Takedown Pins

Geissele Automatics manufactures confidence, offering quality triggers and components for the warfighter and competitor. They were established in 2004 with the mission to build the highest quality, reliable triggers for competition and their first trigger, the Hi-Speed National Match trigger, was so popular that they were asked by the Department of Defense to produce a select-fire trigger for the United States Special Operations. Again, it was a success and Geissele decided to bring a semi-automatic version to the civilian market for law enforcement and personal protection.


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