Build Your Polymer80 Compact Frame with Precision and Confidence
Unlock the potential of DIY firearm building with the MAS Defense Compact Frame Jig, engineered specifically for Polymer80 PF940C frames. This professional-grade tool transforms your build project from challenging to achievable, delivering factory-like precision in the comfort of your workshop. Whether you’re crafting a Glock 19 or Glock 23 compatible pistol, this jig provides the stability and accuracy needed for flawless results.
Why Choose the MAS Defense Polymer80 Jig?
Designed with the serious builder in mind, this jig eliminates guesswork and common frustrations associated with frame modifications. Its robust construction ensures consistent alignment, while user-friendly features make it accessible to both beginners and experienced gunsmiths. By investing in this tool, you’re not just buying a jigβyou’re investing in the success of your build.
Key Features and Benefits
- Perfect Compatibility: Specifically designed for Polymer80 PF940C compact frames, ensuring seamless fit and function for Glock 19 and Glock 23 builds.
- Precision Engineering: Manufactured to tight tolerances for exact drill and mill alignment, reducing errors and improving finish quality.
- Durable Construction: Built from high-strength materials to withstand repeated use without degradation in performance.
- User-Friendly Design: Intuitive setup and clear markings guide you through each step, minimizing the learning curve.
- Time-Saving Efficiency: Streamlines the building process, allowing you to complete your frame faster with professional results.
Technical Specifications
The MAS Defense jig is engineered to meet the exacting standards of Polymer80 frames. It accommodates all necessary drilling and milling operations for the PF940C model, including trigger pin, locking block pin, and rail system modifications. Its design ensures proper alignment with factory specifications, guaranteeing compatibility with OEM and aftermarket parts.
Who Should Use This Jig?
This tool is ideal for firearm enthusiasts, hobbyists, and professional builders who value precision and reliability. Whether you’re completing your first Polymer80 build or adding to your collection, the MAS Defense jig provides the foundation for a successful project. It’s particularly valuable for those seeking to customize their firearms with aftermarket components, as precise frame modifications are critical for optimal performance.
Why Buy from Miami Shooters Supply?
At Miami Shooters Supply, we’re committed to providing top-quality products and exceptional service to the firearms community. Our expertise in DIY building tools ensures you receive reliable, vetted equipment. We offer fast shipping, secure checkout, and knowledgeable support to guide your purchase. Trust us as your partner in buildingβexplore our full range of firearm accessories and tools to enhance your projects.
FAQ: Why Buy from Us?
- Expertise: Our team has hands-on experience with Polymer80 builds and can provide practical advice.
- Quality Assurance: We carefully select products like the MAS Defense jig for durability and performance.
- Customer Support: We’re here to assist with any questions before, during, and after your purchase.
- Fast Delivery: We process orders promptly to get your tools to you quickly.
- Secure Shopping: Your data and transactions are protected with industry-standard security.
Complete your Polymer80 build with confidence using the MAS Defense Compact Frame Jig. Order today and experience the difference precision engineering makes in your DIY firearm projects.

| Compatible Frames | Polymer80 PF940C Compact |
| Compatible Firearms | Glock 19, Glock 23 |
| Caliber Compatibility | 9mm, .40 S&W |
| Jig Type | Drill and Mill Alignment |
| Material | High-Strength Engineering Polymer/Metal Composite |
| Weight | Approx. 1.5 lbs |
| Dimensions | 8″ x 6″ x 3″ (approx.) |
| Brand | MAS Defense |
Frequently Asked Questions About This Product
Why buy MAS Defense Polymer80 Compact Frame Jig for Glock 19/23 Compatible Builds from Miami Shooters Supply?
Weβre a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy MAS Defense Polymer80 Compact Frame Jig for Glock 19/23 Compatible Builds?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is MAS Defense Polymer80 Compact Frame Jig for Glock 19/23 Compatible Builds available now?
Availability is shown live on this page. If the βAdd to Cartβ button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: Firearms, New Arrivals, New Releases.
What tags or features does this product have?
Key features and tags for this product include: .
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
FFL Transfer & Firearms Laws for MAS Defense Polymer80 Compact Frame Jig for Glock 19/23 Compatible Builds
All firearms, including the MAS Defense Polymer80 Compact Frame Jig for Glock 19/23 Compatible Builds, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the MAS Defense Polymer80 Compact Frame Jig for Glock 19/23 Compatible Builds is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.


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