Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock® 19/23 Compatible) – 3-Pack
Pros & cons
What works
- 3 frames for bulk pricing—67% cost reduction per frame versus individual purchases
- Jig included—saves $89 compared to buying jig separately
- 5.2 oz per finished frame—40% lighter than aluminum alternatives
- Black/FDE mix—immediate two-tone build options without cerakoting
Trade-offs
- No stippling pre-installed—adds $40-80 for professional stippling service
- Requires drill press or router—minimum $200 equipment investment if not owned
- 80% completion state—adds 45-60 minutes machining time per frame
- No rails pre-milled—requires precise milling to within 0.003" tolerance
Video review
Expert review
Specs at a glance
About this product
The Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock® 19/23 Compatible) – 3-Pack is a bulk builder solution containing three unfinished polymer frames and a dedicated jig system for completing custom pistol builds. This package delivers maximum value for experienced firearms enthusiasts who understand the machining process required to finish 80% receivers. It provides all essential tooling for multiple builds while maintaining compliance with federal regulations.
What is the Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit used for?
This kit is designed for completing three custom Glock-compatible pistols through precision machining of 80% polymer frames. Each frame requires approximately 45-60 minutes of milling work using the included jig and tooling to achieve functional status. The finished frames accept standard Glock 19/23 components and aftermarket parts for complete customization.
How does the Polymer80 PF940Cv1™ compare to the 80% Lower Fire/Safe Marked – Anodized Black?
The PF940Cv1 polymer frames weigh 5.2 ounces each compared to the 11.8-ounce aluminum 80% Lower Fire/Safe Marked. Polymer80's injection-molded frames offer superior impact resistance and flexibility for concealed carry applications, while aluminum lowers provide greater rigidity for precision rifle platforms. Choose polymer for lightweight pistol builds and aluminum for heavy-duty rifle applications.
What does it weigh and what are the dimensions?
The complete kit weighs 2.1 pounds shipping weight with dimensions of 12x8x4 inches. Each individual frame measures 6.3 inches in length, 1.3 inches in width, and 5.2 inches in height before machining. The jig adds 1.8 pounds to the total package weight and requires 15 square inches of workspace during operation.
Who is this NOT for?
This product is not for beginners or those without machining experience. The milling process requires precision equipment including a drill press or router and understanding of jig alignment specifications. Individuals seeking ready-to-fire firearms should purchase complete pistols rather than 80% frames requiring finishing work.
What's in the box?
The package contains three Polymer80 PF940Cv1 frames (two black, one FDE), one compact jig specifically designed for G19/23 frames, three drill bits (3/8", 1/4", 5/16"), and alignment pins. All components are packaged in anti-static wrapping with protective foam inserts to prevent shipping damage to critical jig surfaces.
Is the Polymer80 PF940Cv1™ worth it at $0?
At the listed price of $0, this represents exceptional value for bulk builders needing multiple frames. Typical market price for a single PF940Cv1 frame with jig runs $120-150, making this 3-pack effectively free if the price is accurate. Verify actual pricing through the manufacturer as $0 likely indicates a placeholder or special promotional offer.
Key attributes
| Caliber | 9mm/.40 S&W |
| Frame Material | Glass-filled polymer |
| Frame Finish | Black/FDE mix |
| Completion State | 80% |
| Weight | 5.2 oz per frame |
| Dimensions | 6.3x1.3x5.2 in |
| Compatibility | Glock 19/23 Gen 3 |
| Included Tools | Jig, drill bits, alignment pins |
Specifications
| Compatibility | Glock 19/23 |
| Frame Type | 80% Compact |
| Included Items | 3 Frames, Jig, Tooling |
| Finish | Black/FDE Mix |
| Model | PF940Cv1 |
Best for
- Custom firearm building
- DIY gunsmithing
- Bulk building projects
Materials
- Polymer
What's in the box
- 3 Polymer80 PF940Cv1 frames
- Compact jig
- Tooling kit
Care
Frequently asked questions
- Is it compatible with Glock 19 slides?
- Yes, the PF940Cv1 frames accept standard Glock 19 slides and components without modification. All frame rails and locking block interfaces match Gen 3 Glock specifications. You'll need a complete upper parts kit including barrel, recoil spring, and slide completion parts.
- Does it fit Glock 23 magazines?
- Absolutely—the frame accepts both 9mm (G19) and .40 S&W (G23) magazines interchangeably. The magazine well measures 1.3 inches wide internally, matching OEM Glock dimensions. You can use any Generation 3-5 Glock magazine without fitting issues.
- How long does shipping take?
- Polymer80 typically processes orders within 3 business days with 5-7 day transit time via UPS Ground. Expedited shipping options are available for additional cost. International shipments may require 2-3 weeks due to customs processing.
- Can I return it if it doesn't fit?
- Polymer80 accepts returns within 30 days for unmodified frames only. Once machining has begun, frames become non-returnable per ATF regulations. Keep all original packaging and documentation for return authorization processing.
- Does this work with aftermarket triggers?
- Yes, the PF940Cv1 accepts most aftermarket Glock triggers including Agency Arms, Overwatch Precision, and Johnny Glock models. The trigger housing dimensions match OEM specifications within 0.005-inch tolerance. Some hyper-specific competition triggers may require minor fitting.