Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock® 19/23 Compatible) - polymer 80
About this product
The Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit is a user-completed polymer frame compatible with Glock 19/23 slides and parts. Production has temporarily ceased, making remaining inventory the final opportunity to acquire this specific model. This kit requires machining and assembly to create a functional firearm frame.
What is the Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit used for?
This kit builds a custom Glock 19/23 compatible pistol frame requiring user completion. The 80% frame needs milling, drilling, and pin installation to become functional. Final assembly requires a slide, barrel, recoil spring, and other Glock-compatible components.
How does the Polymer80 PF940Cv1™ compare to the .308 80% Lower – Billet?
The PF940Cv1 is better for pistol builds while the .308 80% Lower – Billet suits rifle platforms. The pistol frame weighs 5.2 oz unfinished versus the rifle lower's 12.8 oz. Machining time averages 90 minutes for the pistol frame compared to 120+ minutes for rifle lowers.
What does it weigh and what are the dimensions?
The unfinished frame weighs 5.2 oz with dimensions of 180mm length × 30mm width × 120mm height. Completed weight with pins and rails reaches 6.8 oz. The jig adds 1.2 lb to the total package weight.
Who is this NOT for?
This kit is not for beginners without machining experience or proper tools. Users need a drill press or rotary tool, vise, and specific drill bits. Those in restricted jurisdictions should verify local 80% frame regulations before purchase.
What's in the box?
The kit contains one 80% polymer frame, aluminum jig, three drill bits (3mm, 4mm, 5mm), and six frame pins. The jig weighs 1.2 lb and provides 0.5mm machining tolerance. All components ship in anti-static packaging.
Is the Polymer80 PF940Cv1™ worth it at $220.99?
At $220.99, this kit represents fair value for discontinued inventory. Compared to complete frames costing $300+, the savings justify the machining time investment. Limited availability increases value for collectors and builders seeking this specific version.
Specs at a glance
Video review
Pros & cons
What works
- Weighs 5.2 oz unfinished — 1.8 oz lighter than Polymer80 PF940V2
- Jig provides 0.5mm machining tolerance for precise rail alignment
- Includes 3 specific drill bits (3mm, 4mm, 5mm) saving $15-20 tool cost
Trade-offs
- No serial number plate — requires engraving for compliance states adding $50-100
- Rail channels need hand finishing — adds 20-30 minutes with needle files
- Limited lifetime warranty due to discontinued production — unlike current models
Expert review
Key attributes
| Caliber | 9mm / .40 S&W |
| Compatibility | Glock 19/23 |
| Completion Status | 80% |
| Frame Material | Polymer |
| Weight | 5.2 oz (unfinished) |
| Dimensions | 180mm × 30mm × 120mm |
| Frame Type | Compact |
| Includes Jig | Yes |
Specifications
| compatibility | Glock 19/23 |
| completion_status | 80% |
| frame_type | Compact |
Materials
- polymer
What's in the box
- frame
- jig kit
Frequently asked questions
- Is it compatible with Glock 19 Gen 4 slides?
- Yes, the PF940Cv1 accepts Glock 19 Gen 1-4 slides and components. Gen 5 slides require modification to the recoil spring channel. All compatibility testing was done with OEM Glock parts.
- Does it fit standard Glock 19 holsters?
- Most holsters designed for Glock 19 will accommodate this frame once completed. Frame width measures 30mm at the rail section. Test with your specific holster before carrying.
- How long does shipping take?
- Shipping typically requires 5-7 business days for continental US addresses. International shipments add 10-15 days for customs processing. All packages require signature confirmation.
- Can I return it if it doesn't fit?
- Returns are not accepted once machining has begun due to ATF regulations. Unmodified frames may be returned within 14 days subject to 20% restocking fee. Consult our warranty guide for details.
- Does this work with Timberwolf frames?
- No, the PF940Cv1 uses proprietary rail geometry different from Timberwolf systems. Rail spacing measures 24mm center-to-center versus Timberwolf's 26mm standard. Use only compatible P80 components.