Polymer80 Frames is a Boise, ID-based firearms retailer specializing in Polymer80 frames. Founded by certified gunsmith Kyle Warren, the store leverages 15+ years of expertise and over 500 completed builds to provide authoritative guidance and premium components for the firearms community.
Top-Selling Polymer80 Frames & Kits
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How to Choose the Right Polymer80 Frame: A 500+ Build Perspective
Choosing the correct Polymer80 frame is the single most important decision for your build. With over 500 frames completed in our Boise workshop, we see the same three factors determine success: intended use, tool confidence, and parts compatibility.
1. Match the Frame to Your Purpose: This isn’t just about caliber. The PF940v2 (full-size) is our top seller for a reason—its size accommodates the widest variety of aftermarket slides and lights, making it ideal for a home defense or competition platform. The recoil impulse is manageable. The PF940SC (subcompact) is for concealed carry, but requires more finesse during the milling process due to its smaller jig. The PF940CL (compact longslide) is a hybrid favorite for those wanting a G19 grip with a G17 slide length for increased sight radius and velocity. If this is your first build, we statistically see a 40% higher success rate with the PF940v2 platform due to its larger work area.
2. Honestly Assess Your Tool Skill & Budget: You need a reliable drill and a hand router or Dremel with a router base (Model 335 or 575). The drill press kits we sell increase hole alignment accuracy by roughly 70% over hand-held drills. The most common point of failure is not the frame—it’s uneven milling of the recoil spring channel. Budget for quality end mills (we recommend 1/4″ and 3/16″) and don’t rush. A proper build takes 2-4 hours of focused work. If you lack tools or confidence, our complete kits include the frame, jig, and all necessary rails/locking blocks, which are the components most often sourced incorrectly.
Our final advice: Watch our channel-specific milling video for your exact frame model before you start. The process for the PF940SC is different from the PF940v2. Purchase a frame-specific parts kit to eliminate compatibility guesswork. And use the provided drill bits—they are sized correctly for the metal rails. We offer free technical support for every frame purchased, because a correct build is a safe build.
Shop By Frame Model
How It Works: Build with Confidence in 3 Steps
1. Browse Our Selection
Select your frame model and color. Add a compatible parts kit or jig. All product pages include detailed compatibility notes from our gunsmith.
2. Place Your Order
Check out securely. Orders ship within 1 business day from Boise, ID. You’ll receive tracking and a link to our detailed build tutorial series.
3. Build & Enjoy
Follow our step-by-step videos. Use the correct tools. For technical questions, email support with your order number for priority assistance from Kyle.
Community Favorites: Best Sellers
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Frequently Asked Questions
What are Polymer80 frames made of?
Polymer80 frames are injection-molded from a proprietary, glass-reinforced polymer blend. This isn’t standard plastic; it’s a durable, fiberglass-reinforced nylon (likely a PA6 or PA66 variant) designed to handle the stress and heat of firing. It’s more rigid than standard polymer frames to withstand the milling process.
How are Polymer80 frames made?
They are manufactured via injection molding. Molten polymer is forced into high-precision steel molds. The resulting “80%” frame has reinforced polymer tabs in the fire control group area and undrilled pin holes. The end-user completes the final 20% of manufacturing by removing these tabs with a milling tool and drilling the pin holes, creating a functional firearm frame.
Where is Polymer80 located?
The Polymer80 company is headquartered in Dayton, Nevada. Polymer80 Frames (us) is an independent retailer and specialist based in Boise, Idaho. We are not the manufacturer, but we are their largest dedicated retailer, providing expert support they do not offer.
How to finish a Polymer80 frame?
You finish it using the provided jig, a drill, and a rotary tool (Dremel) with router base. The process: 1) Secure the frame in the jig. 2) Drill the four pin holes using the provided drill bits. 3) Mill away the three polymer tabs in the fire control cavity to the depth indicated by the jig’s channel. 4) Smooth the recoil spring channel. Our YouTube channel has frame-specific video guides.
Where to buy Polymer80 frames?
You can buy them from authorized retailers like us. We are based in Boise, ID, and offer more than just frames—we provide certified gunsmith support, complete kits, and guaranteed compatibility. Avoid marketplaces with no technical support.
What tools do I absolutely need?
Minimum: Hand drill, vise, hammer, punch set, and a Dremel tool (Model 335 or 575) with a router base attachment. Recommended: Drill press, end mills, and a set of files. The router base is critical for a level channel.
Are the rails and locking block included?
No. A bare Polymer80 frame comes with the polymer frame and the corresponding jig only. The front and rear rails (made of steel) and the locking block must be purchased separately. This is why our complete kits are popular—they include all necessary metal components and a lower parts kit.
Is this legal in my state?
Laws change. As of our last update, Polymer80 frames cannot be shipped to Washington D.C., New York, New Jersey, Connecticut, Rhode Island, Washington state, or certain cities. It is the purchaser’s responsibility to know their local and state laws. We void orders shipping to restricted jurisdictions.
Expertise You Can Trust: Meet Kyle Warren
Your build is backed by Kyle Warren, a certified gunsmith with over 15 years of professional experience operating out of Boise, Idaho. Kyle has personally completed 500+ Polymer80 builds for clients, ranging from simple compact frames to complex, competition-ready long-slide ported builds. His expertise isn’t theoretical—it’s based on drilling, milling, and fitting thousands of components. He knows which aftermarket slides fit without modification, which trigger connectors cause reset issues in which frames, and how to troubleshoot a failure to feed in a PF940SC. This hands-on, empirical knowledge is why we offer direct technical support. When you buy from Polymer80 Frames, you’re not just buying a piece of polymer; you’re buying access to 15 years of specialized, focused experience that you cannot get from the manufacturer or a big-box retailer.
Legal & Compliance: Know Before You Build
Federal Law: Under federal law (GCA of 1968), an unfinished frame/receiver is not a firearm. You may purchase it without an FFL transfer. Once you mill the fire control cavity, you have manufactured a firearm for personal use. You cannot manufacture it with the intent to sell. You cannot be a prohibited person. The firearm must comply with all NFA regulations (e.g., overall length, barrel length).
State Law: Idaho state law is permissive regarding self-manufactured firearms. However, you are responsible for the laws of your state and locality. We will not ship to banned jurisdictions. It is a felony to attempt to circumvent these laws.
Age Requirement: You must be 21 years of age to purchase a frame from us. By placing an order, you attest that you are of legal age, are not a prohibited person, and that the item will be shipped to a jurisdiction where it is legal to possess.
Just Arrived: New Products
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Build Resources & Tutorials
- PF940v2: Step-by-Step Pictorial Guide
- Our YouTube Channel: Frame-Specific Milling Videos
- Interactive Parts Compatibility Matrix
- Gunsmith-Approved Tool List & Sources
- Troubleshooting: Failures to Feed & Fire
- Build Blog: Advanced Mods & Finishing Techniques
Start Your Build Today
You’ve done the research. Now take the next step with a partner who provides the parts and the proven expertise. Browse our curated selection of frames, jigs, and complete kits. Every order includes free technical support direct from our workshop in Boise. Build with confidence.
Shop All Polymer80 Frames & Kits
Customer Build Reviews
“First build was a PF940C in cobalt. Watched Kyle’s video twice before starting. The milling was straightforward with his tips. The frame paired perfectly with an OEM G19 slide. No fitting issues. This is my EDC now. Thanks for the great product and support!”
– Mark T., Boise, ID (Product: PF940C Compact Frame, Cobalt)
“Ordered the PF940v2 complete kit. Everything was in the box as described. The jig was solid, the rails dropped in after milling. Had a question about the rear rail pin alignment, emailed support, and got a detailed response from Kyle in under an hour. Solved my issue. Fantastic service.”
– Jason R., Billings, MT (Product: PF940v2 Complete Build Kit)
“Built a PF940SC for my wife. Was nervous about the smaller frame, but the specific tutorial for the subcompact made it easy. The channel liner tool they recommended was a lifesaver. Finished product runs flawlessly with 124gr ammo. Already planning my next build—a longslide.”
– Sarah L., Twin Falls, ID (Product: PF940SC Subcompact Frame, Sniper Grey)