MAS DEFENSE Frame Rail Kit for PF-Series Polymer80 Compact G19/G23 – Enhanced Compatibility & Durability
$75.00
Upgrade your Polymer80 PF940C build with this precision-engineered MAS DEFENSE frame rail kit. Designed for flawless compatibility with G19/G23 slides, this kit ensures reliable performance and enhanced durability for your custom pistol project.
MAS DEFENSE Frame Rail Kit for Polymer80 PF940C Compact Frames
Elevate your Polymer80 PF940C build with the MAS DEFENSE Frame Rail Kit, engineered specifically for compatibility with Glock G19 and G23 slides. This essential component provides the structural foundation needed for a reliable, high-performance custom pistol. Whether you’re assembling your first Polymer80 or upgrading an existing build, this rail kit delivers precision fitment and robust construction that meets the demands of serious shooters.
Why Choose This MAS DEFENSE Rail Kit?
MAS DEFENSE has designed this frame rail kit with meticulous attention to detail, ensuring it meets the exact specifications required for Polymer80 PF940C compact frames. Unlike generic alternatives, this kit is manufactured to provide perfect alignment and secure mounting for your slide, resulting in smoother operation and enhanced accuracy. The kit includes all necessary components for a complete installation, making it an ideal solution for both novice builders and experienced gunsmiths.
Key Features & Benefits
- Perfect Compatibility: Specifically designed for Polymer80 PF940C compact frames and compatible with Glock G19/G23 slides for seamless integration.
- Enhanced Durability: Constructed from high-quality materials to withstand regular use and maintain structural integrity over time.
- Precision Engineering: Manufactured to exact tolerances ensuring proper slide alignment and reliable function.
- Complete Kit: Includes all necessary rails and hardware for a straightforward installation process.
- Improved Performance: Provides a solid foundation for your slide, contributing to consistent cycling and accuracy.
Technical Specifications
This MAS DEFENSE frame rail kit is engineered to meet the specific requirements of Polymer80 PF940C frames. The rails are designed to provide optimal contact with the slide, reducing wear and ensuring long-term reliability. The kit’s components are finished to resist corrosion and maintain smooth operation even under demanding conditions.
Installation & Compatibility
This rail kit is designed for easy installation on Polymer80 PF940C compact frames. It’s fully compatible with aftermarket and OEM Glock G19 and G23 slides, barrels, and components. Whether you’re building a compact carry pistol or a custom competition firearm, this rail kit provides the foundation for a reliable, high-performing firearm.
Why Buy from Rare Breed Triggers FRT-15?
At Rare Breed Triggers FRT-15, we specialize in providing high-quality firearm components from trusted manufacturers like MAS DEFENSE. Our expertise in the industry ensures that every product we offer meets strict quality standards. When you purchase from us, you benefit from:
- Expert Selection: We carefully vet all products to ensure they meet performance and reliability standards.
- Knowledgeable Support: Our team understands firearm components and can provide guidance for your build.
- Quality Assurance: Every product is inspected to ensure it arrives in perfect condition.
- Secure Shopping: We prioritize your privacy and security throughout the purchasing process.
Frequently Asked Questions
Q: Is this rail kit compatible with all Polymer80 frames?
A: This specific kit is designed for Polymer80 PF940C compact frames. Please verify your frame model before purchasing.
Q: Does this kit include installation instructions?
A: While basic installation guidance is provided, we recommend consulting detailed Polymer80 build guides or seeking professional gunsmithing assistance if needed.
Q: What materials are used in this rail kit?
A: MAS DEFENSE uses high-quality steel alloys with protective finishes to ensure durability and corrosion resistance.
Q: Can I use this with aftermarket slides?
A: Yes, this rail kit is compatible with both OEM Glock and quality aftermarket slides designed for G19/G23 platforms.
Complete Your Polymer80 Build
This MAS DEFENSE Frame Rail Kit is an essential component for anyone building or upgrading a Polymer80 PF940C pistol. By providing a solid, precisely-engineered foundation for your slide, this kit helps ensure reliable function and improved performance. Whether you’re creating a custom carry gun, competition pistol, or home defense firearm, start with quality components from trusted manufacturers like MAS DEFENSE.

| Compatible Frame | Polymer80 PF940C Compact |
| Compatible Slides | Glock G19, Glock G23 |
| Caliber Compatibility | 9mm, .40 S&W |
| Material | Steel Alloy with Protective Finish |
| Kit Includes | Front Rail, Rear Rail, Mounting Hardware |
| Manufacturer | MAS DEFENSE |
| Finish | Black Oxide/Protective Coating |
Buy Firearms Online – Reliable & Affordable
This MAS DEFENSE Frame Rail Kit for PF-Series Polymer80 Compact G19/G23 – Enhanced Compatibility & Durability is ideal for shooters looking to buy guns online with confidence. Built with precision engineering and tested performance, it’s a top-tier choice whether you're looking for home defense, sport shooting, or a trusted everyday carry.
Why Choose the MAS DEFENSE Frame Rail Kit for PF-Series Polymer80 Compact G19/G23 – Enhanced Compatibility & Durability?
- ✅ Quality guaranteed by top firearm manufacturers
- ✅ Ships fast across the USA
- ✅ Legal compliance and background-check ready
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Shipping & Return Policy
- 📦 Fast shipping within 1–3 business days
- 🔁 30-day return policy for unused, unmodified items
- 💬 Questions? Contact our support team
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| Brand | MAS Defense |
|---|---|
| Caliber | 9mm/.40 S&W |
| Model | PF940C |
| UPC | MAS-PF940C-LBRS-SRRM |



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