Product Overview
The Polymer80 PF940C 80% Pistol Frame – 3-Pack is the foundational starting point for the serious firearms enthusiast and hobbyist builder. This package provides three identical, unfinished “80%” frames, designed to be completed with simple tools and machining to create a functional, custom pistol frame compatible with widely available Glock® 19 components. Engineered for the hands-on individual who values customization and the understanding of their firearm’s mechanics, the PF940C is a semi-automatic platform chambered in 9mm. Its primary use is as a personal project for building a bespoke handgun tailored to your ergonomic and performance preferences, all within the bounds of applicable law.
Key Features
- Classic Black Polymer Construction: Crafted from high-strength, durable polymer, the frame offers a lightweight yet robust foundation that maintains the reliability expected from a modern pistol platform.
- Enhanced Ergonomic Design: Features an extended beavertail and pronounced thumb ledge for superior hand placement and control, reducing muzzle rise and improving overall handling.
- Double-Undercut Trigger Guard: This design allows for a higher, firmer grip on the firearm, enhancing shooter comfort and contributing to better recoil management.
- Optimized 18-Degree Grip Angle: Engineers updated the traditional grip angle to 18 degrees, promoting a more natural point of aim, quicker sight acquisition, and improved control for faster follow-up shots.
- Three-Frame Value Pack: Ideal for builders planning multiple projects, practicing the machining process, or creating dedicated setups for different applications (e.g., competition, training, home defense).
- Glock® 19 Compatibility: Designed to accept a vast aftermarket of slides, barrels, and internal parts kits built for the Glock® 19 platform, offering unparalleled customization potential.
Performance & Applications
The completed PF940C frame serves as the core of a highly adaptable 9mm semi-automatic pistol. Its performance is directly tied to the quality of components used and the builder’s skill, but the frame itself is engineered to support a wide range of applications.
Custom Competition Build: The frame’s ergonomic features—specifically the improved grip angle and undercut trigger guard—provide a distinct advantage for action shooting sports. Builders can pair it with a match-grade barrel, a lightweight competition slide, and a tuned trigger system to create a purpose-built pistol for USPSA or IDPA events.
Advanced Training & Familiarization: For experienced owners, building a firearm from an 80% frame offers deep, practical knowledge of its function and assembly. A completed PF940C can serve as a dedicated training tool, allowing shooters to practice disassembly, maintenance, and function checks with a platform they built themselves, fostering greater confidence and mechanical empathy.
Personalized Defensive Configuration: The platform allows for a tailored fit to the user’s hand, which can improve proficiency. Once completed with reliable, proven components and after thorough testing, a builder can configure a pistol with specific sights, weapon lights, or other accessories suited for responsible, lawful home defense.
About Polymer80
Polymer80 is a recognized leader in the firearms manufacturing industry, specifically known for pioneering the modern 80% receiver market. The company combines expertise in advanced polymer engineering with a deep understanding of firearms design. Their products are developed by engineers and enthusiasts who focus on innovation, durability, and user customization. Polymer80’s commitment to quality control and precise manufacturing tolerances has established them as an authoritative brand among builders who demand a reliable foundation for their projects. Their designs, like the PF940C, are the result of extensive research and real-world feedback, focusing on tangible improvements to ergonomics and shootability.
Why Buy From Blythes Sport Shop
Blythes Sport Shop, based in Valparaiso, IN, is more than just a retailer; it’s a hub for knowledgeable enthusiasts. Their staff understands the intricacies of builds like the Polymer80 PF940C, offering a resource for builders at all levels. When you purchase from Blythes, you’re buying from a established shop with a reputation for providing the right components for your project, from frames and jigs to build kits and ammo. They are your local source for a comprehensive selection of firearms, parts, and accessories, ensuring you have what you need to proceed correctly and responsibly.
Make Your Decision
The Polymer80 PF940C 80% Pistol Frame 3-Pack represents a significant value and opportunity for the dedicated builder. It is a project for those who take pride in craftsmanship and seek a firearm tailored to their exact specifications. Before starting your build, ensure you understand all federal, state, and local laws regarding the manufacture and ownership of firearms, and possess the appropriate tools and mechanical aptitude. This product is sold as a unfinished component. If you’re ready to embark on a detailed, rewarding building process with a premium foundation, this three-pack provides multiple opportunities to perfect your craft.
NEW Polymer 80 PF940C Glock 19 Review!
https://www.youtube.com/watch?v=9gpO-ZtPj00
Technical Specifications
Frequently Asked Questions
Is this a quality product?
Polymer80 has built their reputation on quality, and the Polymer80 PF940C 80% Pistol Frame – 3-Pack exemplifies that commitment.
What makes this product stand out?
The Polymer80 PF940C 80% Pistol Frame – 3-Pack combines quality construction with reliable performance, offering exceptional value.
Who is this product for?
This is ideal for discerning buyers who prioritize quality and reliability.
What warranty is included?
Polymer80 stands behind this product with their manufacturer warranty.






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