P80 Pfs9 Compl Pist 9mm - polymer 80
Pros & cons
What works
- Weighs 8.7 oz — 1.3 oz lighter than Polymer80 PF940C
- 2 mm deeper triggerguard undercut vs. factory frames
- Accepts all Gen3 Glock 19 components without modification
Trade-offs
- No serialization — cannot be legally completed in California
- Requires 3-4 hours milling time with $200+ in tooling
- Raw polymer finish needs stippling or texture coating
Video review
Expert review
Specs at a glance
About this product
The ModFuze P80 PF9 Compl Pist 9mm is a discontinued polymer 80% pistol frame kit compatible with Gen3 Glock components that requires milling and finishing before use. This final production run represents the last available inventory from our manufacturing line. All units ship in raw polymer form without serial numbers or completed fire control cavities.
What is the ModFuze PFS9 COMPL used for?
This 80% frame serves as the foundation for building a custom 9mm pistol compatible with Gen3 Glock slides and parts. The PF9 pattern accepts standard Glock 19 components while maintaining a 1.2 mm thinner grip profile than factory frames. Completion requires approximately 3-4 hours of precision milling and drilling using recommended jigs and fixtures.
How does the ModFuze PF9 compare to the Polymer80 PF940V2?
The ModFuze PF9 features more aggressive front strap texturing and a 2 mm deeper undercut than the Polymer80 PF940V2. While both use identical rail geometry, the ModFuze frame provides superior grip traction at the cost of requiring hand-finishing on all stippled surfaces. The Polymer80 alternative includes pre-milled trigger housing slots that save approximately 45 minutes of milling time.
What does it weigh and what are the dimensions?
The unfinished frame weighs 8.7 oz (246 g) with overall dimensions of 6.9 inches long, 4.3 inches tall, and 1.2 inches wide. Completed builds typically add 12-15 oz depending on slide and barrel selection. Rail spacing maintains the standard 3.5 mm center-to-center distance required for Gen3 Glock compatibility.
Who is this NOT for?
This frame kit is unsuitable for builders lacking access to a drill press or CNC milling equipment. The 80% completion state requires removing approximately 18 cubic centimeters of polymer material using specialized tools referenced in our drill bit guide. California residents should note this product cannot be serialized for state compliance.
What's in the box?
Each kit contains one raw polymer PF9 frame blank, three 3 mm steel locking block pins, and one 4 mm rear rail module. No jigs, drill bits, or completion tools are included—builders must supply their own milling equipment and compatible fixtures separately.
Is the ModFuze PF9 worth it at $479.99?
At this closing price point, the PF9 represents fair value for builders seeking discontinued inventory with enhanced grip features. Compared to the $89.99 cost of current-production Polymer80 frames, this premium covers limited availability and hand-finishing advantages. Serious builders should consider this final opportunity before remaining stock sells out permanently.
Key attributes
| Caliber | 9mm |
| Frame Material | Polymer |
| Weight | 8.7 oz |
| Length | 6.9 in |
| Height | 4.3 in |
| Width | 1.2 in |
| Condition | 80% Unfinished |
| Rail Spacing | 3.5 mm |
Specifications
| caliber | 9mm |
| type | Pistol |
| model | PFS9 COMPL |
Materials
- polymer
Frequently asked questions
- Is it compatible with Gen3 Glock 19 slides?
- Yes, the PF9 maintains full Gen3 Glock 19 slide compatibility with standard 3.5 mm rail spacing. All slide stop and recoil spring channel dimensions match OEM specifications within 0.2 mm tolerance. Expect no fitting required for aftermarket slides from Lone Wolf or Zaffiri Precision.
- Does this include the rear rail jig?
- No, this kit ships without milling jigs or fixtures. Completion requires separate purchase of compatible jigs capable of maintaining 0.5 mm drilling precision. We recommend using Polymer80's proprietary jig system for optimal rail alignment reference our <a href="/blog/adjusting-slide-stop-tension-in-spectre-kits/">tension guide</a>.
- How long does shipping take?
- All orders ship within 3 business days via USPS Priority Mail with 2-5 day transit time. International shipments require 10-15 days with additional customs documentation. Cryptocurrency payments undergo 24-hour verification before processing.
- Can I return it if milling fails?
- No, all sales are final due to the 80% nature of the product. Once polymer material removal begins, the frame becomes non-returnable. We recommend practicing on <a href="/products/80-lower-fire-safe-marked-raw-polymer-80/">practice frames</a> before attempting completion.