Polymer80 PF940C 80% Pistol Frame – 3-Pack

Designed for builders who demand precision and consistency, the Polymer80 PF940C 80% Pistol Frame – 3-Pack delivers three unfinished frames engineered for compact 9mm and .40 S&W builds. Each frame in this pack requires final milling and finishing, giving you full control over trigger geometry, grip texture, and overall fit. As a serial-number-free component (prior to completion), this pack is optimized for hobbyists and custom pistol builders who require repeatable results across multiple projects. The PF940C platform is compatible with a wide range of Gen3-style slides and lower parts kits, making it one of the most versatile 80% frame options currently available.

Overview

The Polymer80 PF940C 80% Pistol Frame – 3-Pack is a bulk offering for serious builders. Each frame is molded from high-impact, glass-reinforced polymer and features the patented Polymer80 front and rear rail system. The PF940C geometry mirrors the compact Glock 19 frame dimensions but includes an integrated accessory rail, an extended beavertail, and aggressive front and rear slide serrations. The 80% completion stage means the trigger housing pocket, pin holes, and rail mating surfaces require final machining. This three-pack provides identical base dimensions across all units, ensuring consistent jig alignment and tooling setup for production-style building.

Features & Specs

• Manufacturer: Polymer80 | Category: Frames | Model: PF940C Compact 80%
• Material: Glass-reinforced nylon polymer with stainless steel front and rear rail inserts
• Compatibility: Accepts Gen3-style slides, barrels, recoil springs, and lower parts kits (9mm/.40 S&W)
• Rail System: Patented 4-axis, 4-pin modular rail system requiring final drilling and pin installation
• Accessory Rail: Integrated Picatinny-style underbarrel rail for lights and lasers
• Grip Angle: 1911-style grip angle with textured front strap, backstrap, and trigger guard undercut

• Kit Contents: Three PF940C 80% frames, three sets of front/rear rail modules, three locking block pins, three slide lock spring assemblies, and three coil spring sets
• Tooling Required: Dremel or rotary tool with end mills, pin punches, sanding blocks, and blue loctite (not included)
• Weight: 2.8 oz per frame (unfinished) | Length: 7.6 inches overall

• Compliance: Each frame is classified as an 80% unfinished receiver under ATF guidelines. No serial number is required until the frame is fully machined and assembled into a functional firearm
• Finish: Molded black textured polymer with no coating required post-completion

Who It’s For

The Polymer80 PF940C 80% Pistol Frame – 3-Pack is intended for experienced hobbyists, custom builders, and small-scale production shops. This pack suits individuals who want to build three identical compact pistols for training, backup carry, or project builds. It is also appropriate for builders experimenting with different trigger weights, slide cuts, or barrel profiles across a consistent frame platform. The PF940C frame is not recommended for first-time 80% builders due to the precision required for proper rail alignment and pin hole drilling. Buyers must be legally eligible to possess firearm components under federal, state, and local law.

Shipping & FFL

This product ships directly to your residence or business address. No Federal Firearms License (FFL) transfer is required because the Polymer80 PF940C 80% Pistol Frame – 3-Pack is sold as an unfinished receiver that is not yet a firearm under federal law. However, once you complete the machining and assembly, the finished firearm must comply with all applicable federal, state, and local regulations. It is your sole responsibility to verify that completion and possession of a ghost gun is legal in your jurisdiction. Some states and municipalities require serialization, background checks, or prohibit 80% frames entirely. By purchasing this product, you confirm that you are not prohibited from possessing firearms and that you will comply with all laws when completing the frames. We do not ship to P.O. boxes, and signature may be required upon delivery. No returns are accepted on 80% frames due to the nature of the product.