Polymer80 Build Guide
How Polymer80 kits work, what’s involved, and what builders should understand before starting
What a Polymer80 Build Is
Understanding the foundation of a privately made firearm project
Unfinished Frame Concept
A Polymer80 build starts with an unfinished frame—a polymer component that requires completion before it can function as part of a firearm. This frame is not ready for use and must go through a build process to become functional.
Why People Choose P80 Kits
Builders are drawn to Polymer80 kits for various reasons including customization options, hands-on learning about firearm mechanics, and the ability to create a personalized firearm that suits their specific preferences and needs.
Privately Made Firearms
When you complete a Polymer80 build, you’re creating what’s known as a privately made firearm. This means you’re the manufacturer for personal use, subject to federal and state regulations that govern such activities.
What Comes in a Polymer80 Kit
Understanding the components included in your starting package
Unfinished Frame
The core polymer component that serves as the foundation of your build. This frame requires completion work before it can accept other firearm components.
Jig System
A specialized tool designed to guide the completion process. The jig helps ensure accuracy and consistency during the build stages.
Rail Components
Metal rails that provide structural support and guide other components. These are essential parts that integrate into the finished frame.
How the Build Process Works
A high-level overview of the stages involved in completing a build
Preparation Stage
Gathering necessary materials, reviewing documentation, and setting up your workspace for the build process.
Frame Completion Stage
Working with the unfinished frame using the provided jig system to prepare it for component integration.
Assembly Stage
Installing rails and integrating other components to create a functional firearm frame.
Final Inspection Stage
Verifying proper completion, checking component fit, and ensuring the build meets functional standards.
Important Note
This overview describes stages conceptually. Detailed build instructions should only be followed from official manufacturer documentation and after verifying all legal requirements in your jurisdiction.
Parts You May Need
Additional components required beyond the frame kit
Slide Assembly
The upper portion that houses the firing mechanism and moves during operation. Available in various configurations and finishes.
Barrel
The rifled tube that guides the projectile. Must match your frame’s caliber specifications.
Internal Components
Springs, pins, and other small parts that enable firearm function. Often sold as complete kits.
Sights
Aiming devices that mount to the slide. Available in fixed or adjustable configurations.
Common Build Questions
Frequently asked questions about Polymer80 builds
Is prior experience required?
While prior firearm knowledge is helpful, many first-time builders successfully complete P80 builds by following manufacturer instructions carefully. Research, patience, and attention to detail are more important than previous experience.
Can build requirements vary by state?
Yes, significantly. State and local laws regarding privately made firearms differ widely. Some jurisdictions have specific registration, serialization, or prohibition requirements. Always verify regulations in your area before starting.
Are all Polymer80 builds the same?
No. Polymer80 offers different frame models compatible with various firearm platforms and sizes. Build complexity and component choices can also vary based on your selected configuration and intended use.
How long does a typical build take?
Build time varies by experience level and frame model, ranging from a few hours to a full day for first-time builders. Taking your time and working methodically is more important than rushing through the process.
Legal & Compatibility Reminders
Essential considerations before beginning your build
Legal Compliance First
Federal regulations and state laws govern privately made firearms. Requirements vary by jurisdiction and change over time. Verify current regulations before purchasing or building.
Compatibility Matters
Not all parts work with all frames. Understanding compatibility between your frame model and other components prevents costly mistakes and ensures a functional build.
⚠️ Critical Reminder
Building a firearm is a serious undertaking with legal, safety, and functional considerations. This guide provides educational overview only—not build instructions. Always consult official manufacturer documentation and verify all legal requirements before proceeding.
Continue Learning Before You Begin
Make informed decisions by understanding compatibility and legal requirements