Polymer80 PF940SC Subcompact Frame Kit – Glock 26/27 Compatible

Overview

For the experienced firearms enthusiast seeking a personalized, subcompact build, the Polymer80 PF940SC 80% frame kit represents the pinnacle of custom pistol crafting. This industry-only kit provides the core foundation for constructing a highly reliable, compact handtailored to your exact preferences. Designed for builders familiar with the Glock platform, the PF940SC is a high-strength, unfinished polymer frame that you complete with simple tools, resulting in a truly unique firearm that reflects your investment in the process. It’s the ideal project for the hobbyist who values ergonomic innovation and the satisfaction of a hands-on build.

Key Features

• Enhanced Ergonomic Design: Features an improved 18-degree grip angle, extended beavertail, and a double undercut trigger guard for superior control and comfort, reducing muzzle flip and improving draw.
• Build-Ready Precision Kit: Includes the proprietary Polymer Jig, Locking Block Rail System (LBRS), Rear Rail Module (RRM), and correct drill bits—everything you need for a precise, successful completion.
• High-Strength Reinforced Polymer: Engineered for durability and longevity, this frame withstands rigorous use while maintaining a lightweight profile ideal for everyday carry builds.
• Customization-Ready Platform: The blank canvas design allows for extensive personalization, from stippling and cerakoting to aftermarket trigger and slide configurations.
• Subcompact Concealability: The Glock 26/27-compatible footprint offers excellent concealment without sacrificing the enhanced grip features of a full-sized frame.

Why Choose This Frame Kit

In a market filled with imitations, Polymer80 remains the original and most trusted name in 80% frames, with a proven track record in the firearms community. Our direct industry sourcing guarantees you receive an authentic, first-quality kit—not a blemished or secondary-market part. The PF940SC’s thoughtful design improvements, like the thumb ledge and refined grip angle, solve common ergonomic complaints associated with factory frames. You’re not just buying a part; you’re investing in a superior building experience backed by years of engineering expertise. The difference is in the details and the confidence of using the platform that set the standard.

Technical Specifications

• Product Name: Polymer80 PF940SC 80% Subcompact Frame Kit
• Compatibility: Glock 26/27, Generation 3 (3-pin design)
• Frame Material: High-Strength Reinforced Polymer
• Included Components: 80% Polymer Frame, Polymer Jig, Locking Block Rail System (LBRS), Rear Rail Module (RRM), Drill Bits
• Grip Angle: 18 Degrees
• Design Features: Extended Beavertail, Thumb Ledges, Double Undercut Trigger Guard
• Finish: Unfinished, ready for milling, drilling, and final finishing.

Compatibility: Critical Details

This PF940SC frame is specifically engineered for Generation 3 components only. Using parts from other generations will result in a non-functional or unsafe firearm. You must source all parts, including the slide parts kit, lower parts kit, locking block, and barrel, as Gen3 components. The frame is designed for the subcompact 9mm (Glock 26) and .40 S&W (Glock 27) models. It will accept all standard Gen3 slides and aftermarket slides machined to Gen3 specifications. Always double-check part generation before purchasing. Our experts can confirm compatibility if you have questions.

Real-World Use Cases

This kit excels in specific, practical scenarios. For the concealed carrier, it’s the foundation of a truly custom “pocket rocket” with grip modifications that factory options don’t offer. Competitive shooters in subcompact divisions appreciate the enhanced control for faster follow-up shots. It’s also a perfect educational project for the mechanically inclined individual looking to deeply understand the function and assembly of a striker-fired pistol. Many builders create a dedicated training pistol that mirrors their primary carry’s trigger feel in a more cost-effective, amortized platform. Remember, the finished firearm is for personal use only and cannot be manufactured for resale.

Legal / Compliance Notice

Purchaser Responsibility is Paramount. This is an unfinished frame/receiver. It is not a firearm and requires machining and assembly to function. It is sold in compliance with federal law as of its date of manufacture. By purchasing, you affirm that you are not prohibited from possessing firearms, you are of legal age (21+), and you understand it is your responsibility to complete this frame in accordance with all applicable local, state, and federal laws. You may only manufacture a firearm for personal use, not for resale. We do not ship to jurisdictions where such items are prohibited. It is your duty to know your laws.

Shipping and Trust

We ship fast and discreetly. Orders are processed within 1 business day and shipped via secure carriers with tracking provided. Every Polymer80 PF940SC kit is sourced directly from the manufacturer, guaranteeing authenticity and that you receive all correct, first-quality components. Our checkout is secured with 256-bit SSL encryption, and we never store sensitive payment data. With decades of specialized experience in the firearms eCommerce sector, you can trust our knowledge, our process, and our commitment to getting you the right parts for your build, safely and efficiently.

Frequently Asked Questions

Q: What tools do I need to complete this PF940SC frame?
A: Beyond the included jig and drill bits, you will need a reliable vise, a hand drill or drill press (recommended), various files, and sandpaper (80-1000 grit). A Dremel tool with router base can expedite the milling step but is not required. Patience and attention to the instructions are your most important tools.

Q: Can I use a Gen4 or Gen5 slide on this Gen3 frame?
A: No. This frame is strictly compatible with Generation 3 slides and components. Gen4/Gen5 slides have different recoil spring assemblies and locking block geometries that are not compatible. Attempting to mix generations will cause malfunctions and potential safety issues.

Q: Is the frame serialized?
A: No. As an 80% frame sold as a non-firearm, it does not have a serial number. Upon completion, federal law does not require you to serialize it for personal use, but some states have their own requirements. You must research and comply with the laws in your specific state of residence.

Q: How difficult is the completion process for a first-time builder?
A: With mechanical aptitude and careful following of the instructions, a first-time builder can successfully complete the frame. The polymer is forgiving to work with. We recommend studying the guide thoroughly, watching several reputable builder videos online, and proceeding slowly. The milling and drilling steps are critical for proper fire control group function.