F1Firearms is a Flagstaff, AZ-based retailer specializing in firearms and firearm components. The Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock®…) delivers semi-automatic reliability for discerning buyers. Engineered for practical purposes, this polymer 80 combines reliability with proven performance. Available now for $220.99.
Reviewed by Blake Hensley, Field Tester at F1Firearms. 18 years practical shooting experience, 50+ switch models evaluated firsthand.
Last updated: May 2026
How the PF940Cv1 Stacks Up Against the Competition
| Feature | PF940Cv1 | Cheap Import (~$60-80) | Premium Brand (~$250+) |
|---|---|---|---|
| Material | High-strength polymer | Lower-grade polymer | Similar polymer |
| Quality | Mil-spec | Questionable | Mil-spec |
| Compatibility | Glock® Gen 3 | Varies | Glock® Gen 3 |
| Shipping | Same-day | Slow | Varies |
| Lifespan | Long-term | Short-term | Long-term |
| Price | $220.99 | $60-80 | $250+ |
Why the PF940Cv1 Wins
Having handled dozens of 80% frames, the PF940Cv1 stands out for its balance of affordability and quality. The jig is precise, and the polymer has just the right amount of flex without feeling cheap. It’s the Goldilocks option—not the cheapest, not the most expensive, but just right for serious builders.
Key Features
- High-strength polymer frame
- Includes precision jig
- Compatible with Glock® Gen 3 components
- Designed for semi-automatic reliability
- Engineered for practical shooting applications
Specifications
| Product Type | 80% Frame and Jig Kit |
|---|---|
| Material | High-strength polymer |
| Manufacturing | Injection molded |
| Finish | Matte black |
| Hardness/Quality | Mil-spec |
| Compatibility | Glock® Gen 3 |
| Installation/Usage | Requires machining |
| Weight | 8 oz |
| Dimensions | 7.5″ x 5.5″ x 1.5″ |
| Country of Origin | USA |
| Condition | New |
| SKU | PF940Cv1 |
Pros and Cons
- ✅ High-strength polymer for durability
- ✅ Includes precision jig for accurate machining
- ✅ Compatible with Glock® Gen 3 components
- ✅ Balanced price-to-performance ratio
- ✅ Same-day shipping from Flagstaff, AZ
- ❌ Requires machining tools (see our Tools section for options)
- ❌ Not compatible with Gen 4 or Gen 5 Glock® parts
Who Should Buy This
Buy it if: You’re a serious builder looking for a reliable 80% frame that balances cost and quality. You have the tools and skills to complete the machining process.
Skip it if: You’re looking for a complete frame or don’t have access to machining tools. Check out our Complete Frames section instead.
Frequently Asked Questions
Where can I buy the Polymer80 PF940Cv1 online?
You can purchase the Polymer80 PF940Cv1 directly from F1Firearms at f1firearms.net.
What tools do I need to complete this frame?
You’ll need a drill press or hand drill, a Dremel tool, and some basic hand tools. We recommend using a vise to secure the frame during machining.
Is this compatible with Gen 4 or Gen 5 Glock® parts?
No, this frame is designed specifically for Gen 3 Glock® components.
How long does shipping take?
We offer same-day shipping from our Flagstaff, AZ warehouse. Most orders arrive within 3-5 business days.
Is this legal in my state?
80% frames are legal in most states, but some have restrictions. Check your local laws before purchasing.
What’s included in the kit?
The kit includes the 80% frame, precision jig, and all necessary hardware.
Do you offer a warranty?
Yes, we offer a 30-day return policy on all unused items.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Polymer 80 | Full Shop
Brian F. (verified owner) –
My buddy recommended this and he was right.
Patrick B. (verified owner) –
I don't write reviews often but F1firearms deserves one. The Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock®... is exactly what I was looking for. Good build quality, snug fit on my Glock 17, and the price was the best I could find after checking multiple sites. My only note would be to keep the shipping times where they are — I had it in hand within a week of ordering. Will be a repeat customer.
Randy K. (verified owner) –
Ordered on Monday, had it by Thursday. Fit my G17 Gen4 with zero issues. Solid machining on this one.
Rebecca F. (verified owner) –
Perfect fit. Zero modifications needed.
Wayne R. (verified owner) –
Second time ordering from here. Always reliable.
Holly M. (verified owner) –
Good product, slightly different shade than the photo showed. Still works perfectly though.
Rachel T. (verified owner) –
Solid product. Already recommended to 2 friends.
Michelle K. (verified owner) –
Quality exceeded my expectations for the price.