Polymer80 PF320PTEX™ Grip Module for SIG SAUER® P320™ - polymer 80
About this product
Polymer80 PF320PTEX™ Grip Module for SIG SAUER® P320™ is a ready‑to‑install polymer grip that replaces the stock grip module on a P320 lower, delivering a lightweight, ergonomic platform for DIY builders.
This grip module is molded from high‑impact polymer, weighs 14.2 oz, and features a textured surface for secure handling. It is sold as a single unit for $70.99 and ships ready for assembly with the standard P320 lower shell.
What is the Polymer80 PF320PTEX™ Grip Module used for?
The grip module is used to complete a SIG SAUER® P320™ build by providing the ergonomic handle and trigger housing. It snaps into the lower receiver without additional machining, saving you up to 30 minutes of fit‑out time compared to a raw lower.
How does the Polymer80 PF320PTEX™ Grip Module compare to the Polymer80 PF940V2 Grip Module?
The PF320PTEX™ is 2.5 oz lighter and 0.2 in shorter than the PF940V2, making it a better choice for concealed carry builds. While the PF940V2 offers a larger grip for high‑capacity setups, the PF320PTEX™ provides a more compact profile without sacrificing durability.
What does it weigh and what are the dimensions?
The module weighs 14.2 oz (403 g) and measures 5.5 in (140 mm) in length, 1.3 in (33 mm) in width, and 0.8 in (20 mm) in height. These dimensions align with the original P320 specifications, ensuring a seamless fit.
Who is this NOT for?
This grip module is not for shooters who require a full‑size grip for competition rifles or those using non‑standard P320 lowers. Builders needing a modular grip that accommodates aftermarket pistols should consider a full‑size polymer or steel grip instead.
What's in the box?
The box contains one PF320PTEX™ grip module, a set of two M2.5×6 mm self‑tapping screws, and a PDF install guide with torque specs. No additional tools are required beyond a standard hex driver.
Is the Polymer80 PF320PTEX™ Grip Module worth it at $70.99?
Yes, the grip module offers a cost‑effective upgrade at $70.99, delivering a ready‑to‑install solution that saves you up to 45 minutes of machining and finishing work. Compared to the $119.99 price of the Polymer80 PF940V2, it provides similar durability with a lighter footprint.
For more polymer lower options, see the .308 80% Lower – Billet or read our Bulk Order Lead Times guide.
Specs at a glance
Video review
Pros & cons
What works
- Weighs 14.2 oz — 2.5 oz lighter than the PF940V2
- Dimensions match stock P320 for seamless fit
- Includes screws and torque guide, ready to install
Trade-offs
- No stippling or grip texture beyond factory pattern — may require aftermarket texturing
- Only compatible with standard P320 lowers — not for custom oversized frames
Expert review
Key attributes
| Caliber | 9mm |
| Weight | 14.2 oz (403 g) |
| Length | 5.5 in (140 mm) |
| Width | 1.3 in (33 mm) |
| Height | 0.8 in (20 mm) |
| Material | High‑impact polymer |
| Condition | New |
Materials
- polymer
Frequently asked questions
- Is it compatible with SIG SAUER® P320™ lower?
- Yes, the PF320PTEX™ grip module is engineered to fit the original SIG SAUER® P320™ lower dimensions, requiring no additional machining. It aligns with the 0.33 in (8.4 mm) mounting recess.
- Does it fit the 9mm P320 frame?
- The module is calibrated for the 9mm P320 frame, matching the 1.1 in (28 mm) barrel extension and maintaining proper trigger geometry.
- How long does shipping take?
- Standard UPS ground shipping delivers in 3‑5 business days for contiguous U.S. addresses. Expedited options arrive in 1‑2 days for an additional $12.99.
- Can I return it if it doesn't fit?
- Yes, ArcForge Arms accepts returns within 30 days of receipt, provided the module is unused and in original packaging. A restocking fee of 10 % applies.
- Does this work with aftermarket trigger kits?
- The PF320PTEX™ works with most aftermarket trigger kits that use the standard P320 mounting pins, including the Rugged Trigger Co. kit which adds 0.02 in (0.5 mm) to trigger pull travel.