Polymer80 PF940v2™ 80% Pistol Frame ONLY - polymer 80
Video review
Expert review
About this product
The Polymer80 PF940v2™ 80% Pistol Frame is an unfinished, serialized-component firearm receiver designed for custom Glock® Gen 3 builds. It provides the foundational geometry for a complete pistol, requiring user completion of the fire control group pocket and drill operations. This product represents the final production run of a foundational design in the custom-build market.
What is the Polymer80 PF940v2™ 80% Pistol Frame used for?
This frame is used as the foundational component for building a custom, semi-automatic pistol compatible with Glock® Gen 3 slides and parts kits. It requires the user to machine the fire control group pocket using a drill press or router, followed by installation of a parts kit and slide assembly. The final product is a functional handgun for personal use, competition, or tactical training, where customization of grip angle and stippling is desired.
How does the Polymer80 PF940v2™ compare to the 80% Lower Receiver and Jig Kit (LR-308)?
The PF940v2 is a pistol frame optimized for 9mm/.40S&W/.357 SIG chamberings, while the 80% Lower Receiver and Jig Kit (LR-308) is a rifle receiver for .308 Winchester/7.62x51mm NATO platforms. The PF940v2 requires more precise drill work for the four pin holes and trigger housing, with a typical completion time of 90-120 minutes versus the more involved milling of the LR-308's fire control pocket. The PF940v2 is better for compact handgun builds; the LR-308 is better for building a large-frame AR-pattern rifle.
What does it weigh and what are the dimensions?
The unfinished PF940v2 frame weighs 6.8 ounces (193 grams) and measures 7.4 inches long, 1.3 inches wide, and 5.2 inches tall. These are raw dimensions prior to any finishing or stippling. The rear rail module, once installed, adds approximately 0.8 ounces. The completed frame, with all pins and a blank insert, typically weighs between 8.2 and 8.5 ounces, depending on the trigger housing installed.
Who is this NOT for?
This frame is not for first-time builders without access to a drill press or router and proper jig fixtures. It is also unsuitable for users in jurisdictions that prohibit possession or completion of unfinished receivers, or for those seeking a ready-to-shoot firearm. Individuals unfamiliar with the legal requirements for serialization and registration, as discussed in resources like Calculating Polymer Frame Warranty Coverage Limits, should not purchase this product.
What's in the box?
The box contains only the 80% Complete Polymer80 PF940v2™ frame. It does not include a drill jig, drill bits, a rear rail module, pins, a locking block, or any other completion parts. The product ships as a single, unfinished polymer casting with molded-in grip texture and pre-formed magazine well. Customers must source all tooling and components separately, which represents a significant additional investment beyond the $160.99 base price.
Is the Polymer80 PF940v2™ worth it at $160.99?
At $160.99, this frame is worth it only for builders who require the specific PF940v2 geometry for a custom Glock®-pattern build and can no longer find it elsewhere, as this is a final production run. The value is contingent on the user's ability to source a compatible rear rail module—a known point of fitment variance—and their willingness to invest an additional $200-$400 in parts and tooling. For a builder with all necessary tools and a parts kit on hand, the frame itself is a competent foundation.
Specs at a glance
Pros & cons
What works
- Weighs 6.8 oz — provides a lighter base than a completed OEM Glock frame (approx. 10.1 oz)
- Accepts all Glock Gen 3 internal parts kits and aftermarket triggers without modification
- Molded grip angle of 18 degrees — a 4-degree reduction from the standard Glock 22-degree angle for a more natural point of aim
- Pre-formed stippling pattern on grip — eliminates the need for initial texture application, saving 30-45 minutes of work
Trade-offs
- Does NOT include the essential rear rail module — a required $25-$40 part that is frequently out of stock
- No drill jig included — requires builder to source or fabricate a precise fixture, adding $50-$120 to project cost
- Final production run — no warranty support or replacement parts available from the manufacturer after stock depletion
- Pre-molded magazine well is tight for some aftermarket mags — may require 5-10 minutes of hand-sanding for smooth insertion
Key attributes
| Model | PF940v2™ |
| Type | 80% Pistol Frame |
| Country of Origin | United States |
| Compatibility | Glock® Gen 3 |
| Construction | Polymer |
| Condition | 80% Complete |
| Weight (Unfinished) | 6.8 oz (193 g) |
| Frame Size | Compact (Glock 19/23/32) |
Specifications
| Model | PF940v2™ |
| Type | 80% Pistol Frame |
| Country of Origin | United States |
| Compatibility | Glock® Gen 3 |
| Construction | Polymer |
| Condition | 80% Complete |
Materials
- Polymer
Frequently asked questions
- Is it compatible with Glock Gen 4 slides?
- No, the PF940v2 frame is only compatible with Glock® Gen 3 pattern slides and parts. Gen 4 slides use a different recoil spring assembly and frame geometry that will not fit without significant, irreversible modification to the frame's front locking block area.
- Does this work with a Polymer80 rear rail module?
- It is designed for the Polymer80 PF940v2-specific rear rail module (part #RLMv2). However, rail module fitment is the most common point of variance; 1 in 20 modules may require hand-fitting with a needle file, taking 10-15 minutes of adjustment for proper pin alignment as detailed in our guide on <a href="/blog/adjusting-slide-stop-tension-in-spectre-kits/">Adjusting Slide Stop Tension</a>.
- Does this fit standard Glock holsters?
- A completed PF940v2-based pistol will fit most Glock 17/19 Gen 3 holsters, but not all. The frame's trigger guard undercut and slightly different rail geometry can cause fitment issues in tight, molded kydex holsters. Expect to test fitment; some holsters from companies like Safariland may require minor heat-gun adjustment.
- How long does shipping take?
- Standard processing is 3-5 business days before shipment. Transit time varies by carrier and destination, typically adding 2-7 business days. All shipments require an adult signature upon delivery and are routed through carriers compliant with modern shipping regulations for firearm components.
- Can I return it after drilling has started?
- No, returns are not accepted once any machining, drilling, or milling has been performed on the frame. The 80% complete status is voided by any modification. Unmodified frames in original packaging may be eligible for return within 14 days, subject to a 15% restocking fee and original shipping costs not being refunded.