Sig Sauer® P320 X-Five Full-Size Medium Upgrade Grip Module – Integrated Extended Beavertail & Deep Undercut – Includes Removable Internal Grip Weight & Flared Magwell Funnel – Matte Black Polymer – GRIP-X5-F-943-M-BLK
Product Description
The Sig Sauer® P320 X-Five Full-Size Medium Upgrade Grip Module (GRIP-X5-F-943-M-BLK) represents an elite mechanical benchmark in modern modular pistol chassis logistics, ergonomic hand-alignment optimization, and competitive competition staging, masterfully molded in the USA. Explicitly engineered to transform or overhaul a baseline full-size P320 or P250 frame into a match-grade firing platform, this premium component leverages the unique modular architecture of Sig’s standalone internal Fire Control Unit (FCU). While standard factory grip modules feature relaxed, high-bore profiles that cause noticeable muzzle flip and hand displacement during rapid multi-shot tracking strings, the X-Five configuration completely overthrows these limitations. This high-efficiency frame upgrade (798681583546) provides an indispensable primary asset for USPSA/IDPA action competitors, tactical shooters, and custom builder configurations demanding maximum mechanical control.
The foundational ergonomic triumph of this full-size structure relies on its deeply undercut trigger guard and re-profiled high backstrap. By lowering the physical profile behind the slide channel, this advanced structural layout moves the operator's master grip significantly closer to the true bore axis—translating recoil impulses directly back into the forearm to eliminate vertical muzzle rise. The frame features a prominent extended beavertail shroud that blankets the soft tissue of the hand, blocking slide-bite vulnerability while maximizing upward palm pressure. Encased in a highly durable, chemical-resistant matte black synthetic polymer matrix, the surface is detailed with exclusive X-Series laser-sculpted texturing, ensuring non-slip registration even when fighting through torrential rain, high humidity, or intense thermal workspace perspiration.
The true operational victory of this American-built adaptation lies within its dual auxiliary balance and speed tuning components. Shipped directly from the factory, the frame is pre-configured with a removable internal steel grip weight and an extended aluminum flared magwell funnel. The hidden internal counterweight balances the physical mass of a loaded slide to counter front-heavy dipping, while the generous 1.43-inch flared magazine throat funnel acts as a mechanical guide for smooth, blind tactical reloads. Accommodating multi-caliber configurations spanning 9mm Luger, .40 S&W, and .357 SIG platforms, this 7.40-ounce modular housing yields absolute administrative and mechanical authority over your sidearm geometry.
Includes: (1) Authentic Sig Sauer Full-Size X-Five Medium Polymer Grip Module (Matte Black Technical Polymer Chassis, Reversible Magazine Release Assembly), (1) Pre-Installed Removable Internal Grip Balance Weight, and (1) Pre-Installed Removable Flared Aluminum Magazine Funnel, Packed in Original Branded Factory Sealed Protection Packaging.
*Administrative Staging, Magazine Baseplate & Fitment Guidance: The Sig Sauer GRIP-X5-F-943-M-BLK is a medium-circumference full-size module calibrated exclusively for full-length 9mm/.40/.357 slides running a 4.7-inch barrel; it will cause the guide rod assembly to protrude if paired with Compact/Carry slide assemblies unless matching compensators are used. **CRUCIAL MAGAZINE COMPATIBILITY WARNING:** Due to the precise contours of the extended flared magwell funnel, this module is incompatible with legacy Gen 1 magazines featuring standard "SIG SAUER" text baseplates. It interfaces natively with newer factory magazines marked with the circular "SIG" logo crest, standard 21-round extended magazines, or aftermarket baseplates designed specifically for X-Series magwells. Always verify your Fire Control Unit is completely cleared of ammunition and safe before transferring it into the new housing block on your workbench.
Key Features
- Match-Grade Ergonomic Profiling: Incorporates a deep trigger guard undercut and raised backstrap to seat the handgun lower in the hand, dramatically decreasing muzzle flip parameters.
- Extended Structural Beavertail: Overbuilt rear beavertail maximizes surface engagement area and stabilizes your master grip while shielding the hand against rapid slide cycles.
- Removable Grip Weight Core: Includes a dense internal weight strip hidden inside the backstrap channel to alter the center of gravity and settle muzzle bounce during strings of fire.
- Flared Aluminum Magwell Funnel: Oversized exterior funnel broadens the magwell mouth to facilitate lightning-fast, positive magazine insertion loops under high-stress competition fields.
- Multi-Caliber Chassis Modularity: Drops seamlessly around any standard P320/P250 safety or non-safety Fire Control Unit chambered in high-power 9mm, .40 S&W, or .357 SIG configurations.
- Laser-Sculptured Grip Texture: Premium medium-drag texturing covers all four facets of the polymer handle to secure an unyielding hold without causing abrasive hand hot-spots.
Product Specifications
- Brand: Sig Sauer® (Engineered, patented, and manufactured natively in the United States of America)
- Product Line: P320/P250 Modular System Upgrades, Polymer Grip Assemblies, & Competition Logistics
- Model Series Designation: P320 X-Five Full-Size Grip Module Assembly
- SKU / MPN: GRIP-X5-F-943-M-BLK (Alternative Industry Identifiers: GRIPX5F943MBLK / 732000619 / 798681583546-Black)
- Pistol Platform Class: Full-Size (FS) Frame Profile Sizing Standard
- Grip Circumference Index: Medium (Calibrated for Optimal Multi-User Registration Symmetrical Mapping)
- Caliber Versatility Matrix: 9x19mm Parabellum, .40 S&W, and .357 SIG Ammunition Deliveries
- Chassis Housing Material: High-Impact Structural Injection-Molded Synthetic Technical Polymer
- Magwell Extension Material: CNC-Machined Aircraft Grade Aluminum Funnel (Removable)
- Internal Counterweight System: Removable Pre-Installed Solid Carbon Steel Balance Block
- Magazine Catch Layout: Factory Installed Right-Hand / Left-Hand Reversible Steel Retainer Pin
- Accessory Mounting Rail: 4-Slot MIL-STD 1913 Picatinny Under-Rail Interface (Full Length)
- Manual Safety Cutout: No (Designed for Standard Non-Manual Safety Fire Control Units)
- Product Net Component Weight: ~7.40 oz (~0.46 lbs) - Combined Polymer Module, Weight, and Magwell Funnel
- Total Packaging Shipping Mass: ~1.10 lbs (Enclosed Inside Heavy Padded Protective Transit Shipping Boxing)
- UPC Barcode Number: 798681583546
