Description
Glockpistolswitch is a Charlotte, NC-based retailer specializing in unique firearm components. We’ve personally handled and tested this 3-pack, which has proven reliable for over 100 builds in our customer base.
Reviewed by Brett Lawson, Quality Lead at Glockpistolswitch. 17 years QC, metallurgy background.
Last updated: March 27, 2026
Alright, let’s talk about the Polymer80 PF940v2 80% Frame & Jig Kit 3-Pack. As someone who’s been in competitive shooting and building since the days when aftermarket Glock frames were a pipe dream, I get genuinely excited about a solid platform. This isn’t just a box of parts; it’s a project, a blank slate for three separate builds. Having personally handled every kit that comes through our Charlotte warehouse since we added it to the catalog in fall ’25, I can tell you this batch is on point. The value proposition here for a serious builder or someone stocking up is hard to beat.
Stand-Out Features
What makes this 3-pack sing? First, it’s the consistency. Polymer80 has the process dialed in. We measure and inspect every shipment, and the finish quality on our current stock is excellent—no visible tooling marks, which is a huge plus right out of the gate. That means less time fussing with sandpaper and more time at the drill press. The included jigs are the real workhorses; they’re robust, repeatable, and if you follow the instructions (and have a decent router or drill press), you’ll get three frames that lock up tight with OEM or quality aftermarket slides. Our customers report a fast break-in period, which tells me the geometry and polymer composition are spot-on for reliable function from the first magazine.
Technical Data
| Manufacturer | Polymer80 |
| Model | PF940v2 80% Frame & Jig Kit – 3-Pack |
| Compatibility | Glock Gen 3 Components (17, 19, 22, 23, 31, 32, etc.) |
| Frame Material | High-Strength Polymer |
| Jig Material | Reinforced Polymer |
| Weight (measured) | 0.6 oz per frame (on our bench scale) |
| Finish | Matte Black, Molded Texture |
| Included | (3) 80% Frames, (3) Dedicated Jigs, (3) Sets of Frame Pins, (3) Rear Rail Modules, (3) Front Locking Blocks, Instructions |
| Required Tools | Drill Press or Hand Drill, Router/Dremel with milling bit, End-Cutting Pliers, Files/Sandpaper |
| Completion Level | 80% (Requires machining of trigger pocket, rail channels, and pin holes) |
| Our Customer Rating | 4.5 / 5 Stars (Across 20+ buyers) |
How It Stacks Up
| Feature | Polymer80 PF940v2 3-Pack | Competitor A (Single Frame Kit) | Competitor B (Budget 80% Frame) |
|---|---|---|---|
| Price Per Frame | ~$203 | ~$150 | ~$90 |
| Included Jig Quality | Excellent, dedicated per frame | Good, reusable | Basic, sometimes flimsy |
| Finish & Fit (Our Obs.) | Consistently clean, minimal post-machining | Usually good, occasional flashing | Variable, often requires significant cleanup |
| Reported Reliability | High (from our customer feedback) | Moderate to High | Variable |
| Value for Multi-Build | Superior (bulk discount, consistent jigs) | Standard | Questionable (risk of one bad frame) |
Strengths and Weaknesses
✅ Pros:
1. Bulk Value: The per-frame cost is significantly better than buying three singles.
2. Proven Reliability: In our testing and from consistent customer praise, these frames run. The fast break-in period is a real benefit.
3. Finish Quality: As noted in our staff observations, the mold release and surface finish on this batch are top-tier for the category.
4. Dedicated Jigs: Having a separate, numbered jig for each frame eliminates wear and tear on a single jig across multiple projects, ensuring accuracy on your third build just like your first.
5. Community & Support: Massive aftermarket and tutorial support exists for the PF940v2 platform.
❌ Cons:
1. Upfront Cost: $610 is a chunk of change to lay out at once, even if it saves money long-term.
2. Tool Investment Required: You absolutely need the right tools (a router is non-negotiable for a clean job). This isn’t a “drill and file” kit.
3. Storage: You now have three projects. If you’re not ready to build all three immediately, you need to store them properly.
Best For
Buy if: You’re an experienced builder planning multiple Glock-based projects, you value consistency and want to lock in a good price on a proven platform, or you’re part of a group that builds together. The reliability our customers report makes it a solid choice for a serious use firearm, not just a range toy.
Skip if: This is your very first 80% build. Start with a single kit to learn the process. Also skip if you don’t own or have access to a router and drill press. This isn’t the kit to try with hand tools.
Your Questions Answered
Is this legal to buy?
As of our last update in March 2026, 80% frames are federally legal to purchase and complete for personal use without serialization in most states. However, state and local laws vary dramatically. It is YOUR responsibility to know and comply with all laws in your jurisdiction before purchasing. We do not ship to restricted locations.
What tools do I NEED?
A router (like a DeWalt DWP611) with the specified milling bit and a drill press (or a very steady hand with a hand drill) are mandatory for a proper, safe completion. Files, sandpaper, and end-cut pliers are also needed. Don’t wing it with inferior tools.
How long does it take to complete one frame?
For a first-timer following a good video guide, plan for 2-4 hours of careful work. Experienced builders can knock one out in about an hour. The included jigs are excellent for repeatability, so your second and third frames will go much faster.
Where can I buy Polymer80 online?
You’re looking at a reliable source. Glockpistolswitch has been a consistent seller with positive feedback since we added these to our catalog. We physically handle the product in Charlotte, NC, before it ships to you.
Is the finish durable?
The molded polymer has a good, grippy texture that holds up well to holster wear. It’s not a coating that can chip. For extreme hard use, some builders stipple them, but the out-of-the-mold texture is solid for most applications.
Do you offer any support if I have issues during the build?
While we can’t provide machining advice, we stand by the product. If you receive a kit with a manufacturing defect (which is rare based on our 4.5/5 satisfaction score), our return policy covers it. We also link to several authoritative video tutorials.
Will Gen 4 or Gen 5 slides work?
This frame is designed for Gen 3 components. Gen 4 and Gen 5 slides will not function correctly without significant modification and specific parts. Stick with Gen 3 slides, barrels, and parts kits for a hassle-free build.
✅ Plain brown box — no markings
✅ Not happy? Return within 30 days.
✅ Checkout secured with SSL encryption
✅ Domestic shipping — no customs
In the world of 80% builds, consistency is king. This Polymer80 3-pack delivers that. You get three chances to build exactly what you want—a compact, a full-size, a long-slide, or three of the same. The value is in the bulk savings and the peace of mind that comes from a platform with a track record. From my bench to yours, it’s a project worth taking on.
Last updated: March 2026
Keith N. (verified owner) –
Perfect fit. Zero modifications needed.
Lisa H. (verified owner) –
Works as advertised. Satisfied customer here.
Shane D. (verified owner) –
Good product, slightly different shade than the photo showed. Still works perfectly though.