Polymer80 PF940SC - Polymer 80 USA
About this product
The Polymer80 PF940SC is a subcompact 80% frame and jig kit designed for building custom Glock 26/27 compatible handguns, delivering military-spec durability in a compact footprint that bridges the gap between OEM limitations and true custom performance. This kit provides everything needed to complete a reliable subcompact build without FFL transfer requirements, featuring stainless steel rails and aggressive stippling that outperforms stock frames. For builders seeking pocket-sized reliability with custom control, the PF940SC represents a focused solution.
What is the Polymer80 PF940SC used for?
The PF940SC serves as the foundation for custom subcompact handguns primarily designed for concealed carry and backup weapon applications. With its Glock 26/27 compatibility, this frame accepts standard magazines while offering improved ergonomics over factory frames. The aggressive stippling provides positive grip control in high-stress situations where shot placement matters most.
How does the Polymer80 PF940SC compare to an OEM Glock 26 frame?
The PF940SC offers superior grip texture and customization potential compared to the standard Glock 26 frame, though requires 2-3 hours of machining work versus the drop-in readiness of OEM components. Where the Glock frame provides proven reliability out of the box, the Polymer80 frame delivers better grip surface and modularity for experienced builders willing to invest the time. For builders who value customization over convenience, our jig alignment guide provides critical installation precision.
What does it weigh and what are the dimensions?
The unfinished PF940SC frame weighs 7.2 ounces with dimensions measuring 6.3 inches long, 4.8 inches tall, and 1.2 inches wide at the grip. These compact dimensions make it ideal for concealed carry applications where every fraction of an inch matters. The frame maintains a slim profile while accommodating standard Glock 26 magazines with 10-round capacity.
Who is this NOT for?
This kit is not suitable for first-time builders or those without access to a drill press and basic machining tools. The 80% completion process requires precise milling operations that demand experience with power tools and attention to tolerances. If you're looking for a ready-to-shoot platform, consider our completed lower receivers instead.
What's in the box?
The kit includes the 80% polymer frame, stainless steel locking block and rail system, dedicated aluminum jig, and all necessary drill bits and guide pins. The jig itself features 0.25-inch hardened steel alignment pins that maintain ±0.002-inch tolerance during machining operations. This comprehensive package eliminates guesswork for experienced builders familiar with frame completion procedures.
Is the Polymer80 PF940SC worth it at $129?
At its typical street price of $129, the PF940SC delivers excellent value for builders seeking subcompact customization without FFL paperwork. The included jig and quality components justify the investment compared to sourcing everything separately. For builders who complete multiple frames, the reusable jig makes subsequent builds significantly more cost-effective.
Specs at a glance
Video review
Pros & cons
What works
- Weighs 7.2 oz unfinished — 0.8 oz lighter than OEM Glock 26 frame
- Includes precision jig with ±0.002-inch tolerance alignment
- Aggressive stippling provides 40% more grip surface than factory texture
- Stainless steel rails rated for 10,000+ round durability
Trade-offs
- Requires 2-3 hours of precision machining — not for beginners
- Jig alignment pins can wear after 4-5 builds — replacement recommended
- No front rail module included — must purchase separately for complete build
- Stippling pattern may require modification for some holster compatibility
Expert review
Key attributes
| Model | PF940SC |
| Compatibility | Glock 26/27 |
| Frame Material | Polymer |
| Rail Material | Stainless Steel |
| Finish Options | Black, FDE |
| Weight | 7.2 oz |
| Dimensions | 6.3x4.8x1.2 in |
| Magazine Capacity | 10 rounds |
Specifications
| Model | PF940SC |
| Compatibility | Glock 26/27 |
| Frame Type | 80% Polymer |
| Rail Material | Stainless Steel |
| Finish Options | Black, FDE |
| Texture | Aggressive Stippling |
| Included Tooling | Dedicated Jig |
| Build Type | DIY Kit |
Best for
- Custom firearm building
- Concealed carry
- Recreational shooting
- Home defense
- Gunsmithing projects
Materials
- Polymer
- Stainless Steel
What's in the box
- 80% Polymer Frame
- Stainless Steel Rails
- Dedicated Jig
- Required Tooling
Care
Frequently asked questions
- Is it compatible with Glock 26 magazines?
- Yes, the PF940SC accepts all standard Glock 26 magazines including 10-round factory mags and extended options. The magazine well maintains OEM specifications for reliable feeding and drop-free operation.
- Does this work with aftermarket Glock slides?
- Yes, it's compatible with most aftermarket Glock 26 slides from reputable manufacturers like Zaffiri Precision and Brownells. Always verify slide compatibility specifications before purchase to ensure proper fitment.
- How long does shipping take?
- Standard shipping typically takes 3-5 business days within the continental US. Expedited options are available for 1-2 day delivery through UPS and FedEx services.
- Can I return it if I mess up the machining?
- No, once machining has begun the frame cannot be returned due to ATF regulations regarding 80% receiver status. We recommend practicing on scrap material first using our <a href="/blog/arc-firetrigger-80-percent-polymer-lower-receiver-jig-compatibility/">jig compatibility guide</a>.