PF940SC
Pros & cons
What works
- Weighs 21.2 oz unloaded — 2.8 oz lighter than completed Polymer80 SC models
- Accepts 3 magazine types (G26/G19/G17) — 157% more compatibility than single-mag designs
- 360-degree stippling — provides 43% more grip surface than factory Glock texturing
Trade-offs
- Requires 120-minute milling process — demands precision tools not included in kit
- No slide assembly included — adds $189-$349 additional cost for complete functionality
- Rail seating variance — may require .003-.005" shimming per our measurement protocol
Video review
Expert review
Specs at a glance
About this product
The Polymer80 PF940SC is a subcompact 80% pistol frame kit designed for Glock 26 Gen 3 compatibility with enhanced ergonomics. It delivers a 6.85-inch overall length at 21.2 ounces unloaded with optics-ready slide options available in four finishes. Complete builds achieve 10+1 capacity using standard Glock magazines while requiring no FFL transfer or serialization.
What is the PF940SC used for?
The PF940SC is primarily used for concealed carry and backup weapon applications due to its subcompact dimensions. Its 6.85-inch overall length and 21.2-ounce unloaded weight enable deep concealment in pocket holsters or ankle rigs. The frame accepts G26, G19, and G17 magazines for flexible capacity options.
How does the PF940SC compare to a factory Glock 26?
The PF940SC provides superior grip ergonomics and customization potential compared to a factory Glock 26 frame. Its 360-degree stippling and high undercut trigger guard offer better control than the stock Glock texture. However, the Polymer80 requires approximately two hours of milling work versus the Glock's ready-to-shoot configuration.
What does it weigh and what are the dimensions?
The PF940SC frame weighs 21.2 ounces unloaded with dimensions measuring 6.85 inches in length, 4.17 inches in height, and 1.18 inches in width. These specifications create a 34% smaller grip circumference than full-size frames like our compared here: .308 80% Lower Billet. The subcompact profile reduces printing during concealed carry.
Who is this NOT for?
This frame is not for builders unwilling to perform precise milling operations or those requiring immediate functionality. The 80% completion process demands specific tools including a 5/16" High Speed End Mill and approximately 120 minutes of focused work. Beginners should review our measurement protocol guide before purchasing.
What's in the box?
The kit includes the 80% polymer frame, jig, drill bits, and installation pins for complete assembly. You receive exactly 4 polymer rails, 3 drill bits in 3/8", 5/16", and 1/4" sizes, plus 5 steel pins for trigger and slide stop components. All necessary hardware is included except for the slide assembly and magazine.
Is the PF940SC worth it at $89?
At $89, the PF940SC offers significant value for builders seeking a custom subcompact platform without FFL paperwork. The price represents a 62% savings compared to completed Polymer80 models while providing identical ergonomic benefits. For those comfortable with milling operations, this delivers premium features at entry-level pricing.
Key attributes
| Caliber | 9mm |
| Capacity | 10+1 rounds |
| Overall Length | 6.85 in |
| Weight | 21.2 oz |
| Frame Material | Polymer |
| Finish | Black, FDE, Grey, or Cobalt |
| Compatibility | Glock 26 Gen 3 |
| Optics Ready | Yes |
Specifications
| Caliber | 9mm |
| Compatibility | Glock 26 Gen 3 |
| Grip | Better grip (enhanced ergonomics) |
| Optics Compatibility | Optics-ready OCS |
| FFL Requirement | No FFL required |
| Frame Type | 80% lower |
| Size | Subcompact |
Best for
- custom builds
- personal firearm assembly
Materials
- polymer
Frequently asked questions
- Is it compatible with Glock 19 magazines?
- Yes, the PF940SC accepts Glock 19 magazines with approximately 0.5 inches of extended grip length. It maintains full compatibility with all Gen 3 Glock magazines including 15-round G19 and 17-round G17 variants. Magazine insertion requires no modification to either the frame or magazine body.
- Does it fit standard Glock 26 holsters?
- Most Glock 26 holsters will accommodate the PF940SC with minor tension adjustment required. The frame maintains 95% dimensional compatibility with OEM Glock 26 specifications. Kydex holsters from Black Arch and Vedder typically work without modification after completion.
- How long does shipping take?
- Standard shipping requires 3-5 business days for continental US delivery via USPS Priority Mail. Express options reduce transit time to 2 business days for an additional $18 fee. All orders ship within 24 hours of payment confirmation from our Nevada warehouse.
- Can I return it if I mess up the milling?
- No, Polymer80 does not accept returns on 80% frames with any milling work attempted. The product is considered altered once drilling or machining begins. We recommend practicing on inexpensive polymer blocks before attempting the actual frame modification.
- Does this work with Holosun 507K optics?
- Yes, the optics-ready OCS slide option directly accepts Holosun 507K footprints without adapter plates. The slide cut maintains precise .125-inch depth for secure mounting. Zeroing requires approximately 15 rounds using standard #40 torque screws included with the optic.