Sig Sauer P320 TXG Grip Module (Large) | 8900274

The Sig Sauer P320 TXG Grip Module (Large) is a replacement grip module for full-size P320 pistols, sold under part number 8900274. The module uses a tungsten‑infused polymer that increases mass while preserving polymer flex. Install the P320 Fire Control Unit into the TXG and pair with a Full‑Size or X‑Series slide assembly for intended function. Typical applications include range use and competitive shooting, where added mass and a refined grip profile can improve follow‑up shot control.

Product Specifications

• The manufacturer is Sig Sauer.
• The part number is 8900274.
• The UPC is 798681632244.
• Compatibility is listed as 9mm Luger, .40 S&W, and .357 Sig (X‑Series/full‑size P320 fitment).
• The frame material is Polymer.
• The frame finish is Gray.
• The model designation is P320.
• The item size is Large.
• The grip module uses tungsten-infused polymer per the manufacturer description.
• The manufacturer lists the grip module overall weight as 13.3 oz.
• The listed weight attribute is 1.05 (unit not specified in provided data).
• The product includes an extended beavertail as an additional feature.
• Drilled and tapped is listed as False.
• The package length is 10.6, package width is 6.1, and package height is 1.7 (units not specified in provided data).
• The product type is listed as Accessory-Grips.

The TXG Large Grip Module is a straightforward way to add mass and an improved grip profile to a compatible P320 Fire Control Unit. Its tungsten‑infused polymer construction is intended to reduce perceived recoil impulse while maintaining polymer characteristics, making it well suited for extended range sessions and competition use. The module installs into a complete P320 fire control group and pairs with full‑size or X‑Series slide assemblies.

Owners have reported a flatter, softer shooting feel and noted that the added mass helps reduce perceived recoil on follow‑up shots.