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80% Lower Fire/Safe Marked and Mil-Spec AR15 Lower Parts Kit (w/ Hammer and Trigger) | Polymer80

SKUAR15LPK-690-BLK
$109.99
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About this product

Build Your AR15 with Confidence: Polymer80’s 80% Lower Parts Kit

Elevate your firearm build with the Polymer80 80% Lower Fire/Safe Marked and Mil-Spec AR15 Lower Parts Kit, complete with hammer and trigger. This comprehensive kit is designed for enthusiasts and builders seeking reliability and compliance in their AR15 projects. Crafted to meet Mil-Spec standards, it ensures seamless compatibility with most AR15 platforms, making it an ideal choice for custom builds, repairs, or upgrades.

Polymer80 AR15 lower parts kit with fire safe markings and mil-spec components

Key Features and Benefits

  • Includes all necessary components for completing an 80% lower receiver, such as the hammer, trigger, pins, springs, and safety selector.
  • Features clear Fire and Safe markings for enhanced safety and user awareness during operation.
  • Constructed from high-quality materials for durability and long-lasting performance in various conditions.
  • Designed for easy installation, reducing build time and ensuring a smooth assembly process for both beginners and experienced builders.

Technical Specifications

Specification Detail
Compatibility Mil-Spec AR15 platforms
Included Components Hammer, trigger, fire control group, pins, springs, safety selector, and more
Markings Fire and Safe indicators for safety compliance
Material Steel and other durable metals for critical parts
Finish Typically black or coated for corrosion resistance

Why Choose Polymer80?

As a trusted name in the firearms community, Polymer80 delivers products that emphasize quality, innovation, and user satisfaction. Our kits are backed by extensive testing and positive user feedback, ensuring you get a reliable solution for your building needs. Whether you’re working on a new project or maintaining an existing firearm, this lower parts kit provides everything required for a successful and compliant build. Explore our full range of products to enhance your arsenal with confidence.

Note: Always follow local laws and regulations when building firearms. This kit is intended for legal use by responsible individuals.

What's in the box

  • 80% Lower Fire/Safe Marked and Mil-Spec AR15 Lower Parts Kit (w/ Hammer and Trigger) | Polymer80
Sources & methodology. Editorial review and rating by Caleb J. Reisinger based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$109.99