Description
Product Overview
The Polymer80 PF940C™ 80% Pistol Frame is the foundational component for building a custom, compact 9mm semi-automatic pistol. Designed for the experienced firearms enthusiast and hobbyist builder, this frame is engineered to be compatible with widely available Glock® 19 components. As an 80% frame, it requires the end user to perform the final machining steps, offering a deeply personalized project that culminates in a functional firearm. This process is ideal for those who value hands-on customization, understanding of their firearm’s mechanics, and the satisfaction of a self-assembled build. The PF940C™ is tailored for personal use in recreational shooting, home defense preparation, and as a dedicated platform for honing gunsmithing skills.
Key Features
- Compact 9mm Platform: Designed to accept standard Glock® 19 parts kits and slides, this frame creates a versatile and highly popular compact pistol format, balancing concealability with shootability.
- Enhanced Ergonomic Design: Features an integrated extended beavertail and pronounced thumb ledge, promoting a higher, more controlled grip and mitigating slide bite for improved handling.
- Double-Undercut Trigger Guard: Provides additional clearance for the support hand, allowing for a consistently firm, high grip that enhances control and reduces muzzle flip during rapid fire.
- Durable Polymer Construction: Manufactured from a proprietary, reinforced polymer blend that offers an optimal balance of lightweight durability and structural integrity for the 9mm semi-automatic action.
- Customizable Foundation: As an unfinished 80% frame, it offers the builder the opportunity to personally complete the fire control cavity, ensuring a unique build and a thorough understanding of the assembly process.
- Multiple Color Options: Available in a selection of finishes, allowing builders to select a frame that matches their personal aesthetic or build theme from the outset.
Performance & Applications
Once completed with a slide, barrel, and internal parts kit, the PF940C™ frame serves as the backbone for a reliable and highly customizable compact pistol. Its primary application is as a project for the dedicated shooting hobbyist. The build process itself is a key use case, providing invaluable education in firearm mechanics and customization. For the recreational shooter, the completed pistol offers a platform ideal for range training and competition in compact divisions, where its ergonomic enhancements directly translate to faster, more accurate follow-up shots.
Furthermore, the frame can serve as the starting point for a configured home defense firearm. Once properly assembled, function-checked, and tested with a variety of ammunition, the resulting pistol benefits from the builder’s intimate knowledge of its operation and reliability. It’s important to note that any defensive firearm must be assembled with quality components and undergo extensive proficiency testing by the end user.
About Polymer80
Polymer80 is a recognized innovator in the firearms manufacturing industry, specifically known for pioneering the modern 80% frame and receiver market. The company combines expertise in advanced polymer engineering with a deep understanding of firearms design, creating products that meet precise dimensional and material specifications. Their commitment to quality control and consistent manufacturing processes has established them as a leading authority in the builder community. The PF940C™ frame is a direct result of this expertise, incorporating direct user feedback into its ergonomic design while maintaining strict compatibility with an extensive aftermarket parts ecosystem.
Why Buy From F1 Firearms AR-15
Selecting a reputable retailer is as important as choosing quality components for your build. F1 Firearms AR-15, based in Spring, TX, operates with a focus on serving the needs of builders and enthusiasts. Their team understands the specifics of builder components like the Polymer80 PF940C™ and can provide informed service. When you source your frame from a specialist retailer, you benefit from direct access to a company that prioritizes efficient order processing and secure shipping, ensuring your project starts on solid ground.
Make Your Decision
The Polymer80 PF940C™ 80% Pistol Frame is more than a part; it’s the beginning of a custom firearms project. It is suited for individuals who are prepared to undertake the responsibility of completing a frame in accordance with all applicable laws and who seek the tangible rewards of a personalized build. If your goal is to construct a compact 9mm pistol with superior ergonomics and a direct connection to its function, this frame provides the proven, high-quality foundation. Ensure you have the necessary tools, a compatible jig, and a Glock® 19 parts kit before beginning your build journey.
Technical Specifications
Frequently Asked Questions
Who is this product for?
This is ideal for discerning buyers who prioritize quality and reliability.
What makes this product stand out?
The Polymer80 PF940C™ 80% Pistol Frame ONLY combines quality construction with reliable performance, offering exceptional value.
What warranty is included?
Polymer80 stands behind this product with their manufacturer warranty.
Is this a quality product?
Polymer80 has built their reputation on quality, and the Polymer80 PF940C™ 80% Pistol Frame ONLY exemplifies that commitment.

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