Description
Product Overview
The Polymer80 PF320PTEX™ Grip Module for SIG SAUER® P320™ is a foundational component for customizing one of the most modular handgun platforms available. Designed for the firearms enthusiast, competitive shooter, or responsible citizen looking to tailor their pistol’s ergonomics and size, this grip module serves as the chassis for your P320’s Fire Control Unit (FCU). In essence, it allows you to reconfigure your existing P320 into a full-sized or carry-sized configuration by providing a new polymer frame. This part is ideal for those who appreciate the P320’s innovative design and seek to build a secondary configuration or replace a worn frame with an upgraded feel.
Key Features
- Enhanced Texturing (PTEX™): Features Polymer80’s proprietary PTEX texturing on the frontstrap, backstrap, and side panels. This provides a consistent, aggressive grip surface that is highly effective for maintaining control in various conditions, without being overly abrasive.
- Full-Size & Carry Compatibility: Engineered to accept both full-size and carry-length slides and barrels, offering significant versatility within a single frame. This allows for multiple functional setups from one core component.
- Durable Polymer Construction: Fabricated from a high-strength, glass-filled polymer, this grip module is designed for durability and impact resistance while keeping the overall weight of the firearm manageable for all-day carry or extended range sessions.
- Optimized Ergonomic Profile: The design incorporates a contoured undercut trigger guard and a refined grip angle to promote a higher, more natural hand position. This can improve recoil management and shooter comfort.
- Standard P320 Compatibility: Built to the exacting specifications of the SIG P320 platform, this module is designed to seamlessly interface with factory SIG SAUER P320 Fire Control Units (FCUs/MUP-1), slides, and magazines in 9mm, ensuring reliable function.
- Flared Magazine Well: Includes an integral, subtly flared magazine well to facilitate faster and more positive magazine changes, a valuable feature for both training and competition use.
Performance & Applications
The primary application for the PF320PTEX Grip Module is configuration flexibility. For an owner of a P320 Compact, this module enables a quick transformation into a full-sized duty or home defense pistol. The longer grip frame accommodates standard 17-round magazines, providing increased capacity and a full-handed grip for shooters with larger hands.
For the practical shooter or competitor, the enhanced PTEX texturing and ergonomic refinements are tangible upgrades. The improved grip security directly translates to better control during rapid strings of fire or when managing the 9mm semi-automatic’s recoil impulse. This makes the module a popular choice for those involved in action pistol sports like USPSA or IDPA, where split-second control matters.
Finally, it serves as an excellent replacement or upgrade path for a standard factory frame. Whether seeking a more aggressive texture, a preferred grip angle, or simply needing a fresh frame for a custom build centered on a standalone FCU, this Polymer80 module provides a robust and feature-rich solution.
About SIG
SIG SAUER’s reputation is built on a legacy of engineering precision and innovation for military, law enforcement, and civilian markets. The P320 platform itself is a testament to this, having undergone rigorous testing to become the U.S. Army’s Modular Handgun System (MHS). This modularity—keeping the serialized fire control unit as the core—revolutionized handgun customization. Polymer80, as a brand, operates within this ecosystem by producing aftermarket components that meet the high bar set by SIG’s original design. They specialize in polymer frames that offer alternative ergonomics and textures, giving end-users sanctioned options to personalize a proven system without compromising on the critical interface with OEM internal parts.
Why Buy From F1 Firearms
F1 Firearms, based in Spring, TX, is recognized for its own engineering and manufacturing expertise, particularly with the F1 FDR-15 platform. This background means they understand precision-machined parts and the importance of component-level quality. When you purchase a module like the Polymer80 PF320PTEX from them, you are dealing with a retailer that comprehends the product’s role in a build from both a technical and practical standpoint. Their focus on the builder community ensures they stock components that meet a discerning user’s needs for fit, function, and reliability.
Make Your Decision
The Polymer80 PF320PTEX Grip Module is a logical upgrade for any P320 owner seeking improved ergonomics and a more secure grip. It leverages the inherent modularity SIG engineered into the platform, allowing you to change your pistol’s form and function with a simple frame swap. Consider this module if your needs have evolved toward a full-sized grip, or if the enhanced texture and contours align with your shooting discipline or carry preferences. It is a component that respects the original design’s intent while offering a tangible, performance-oriented alternative.
Technical Specifications
Frequently Asked Questions
What warranty is included?
SIG stands behind this product with their manufacturer warranty.
What makes this product stand out?
The Polymer80 PF320PTEX™ Grip Module for SIG SAUER® P320™ combines quality construction with reliable performance, offering exceptional value.
Is this a quality product?
SIG has built their reputation on quality, and the Polymer80 PF320PTEX™ Grip Module for SIG SAUER® P320™ exemplifies that commitment.
Who is this product for?
This is ideal for discerning buyers who prioritize quality and reliability.

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