Sig Sauer has taken Sig Sauer's XCompact grip module and enhanced the gripping surface with custom laser-stippling. Install your P320 / P250 firing control unit into this Grip Module Assembly to convert to a P320 or P250 compact chambered in 9mm Luger, 40 Smith & Wesson, or 357 Sig with a medium grip size. Requires the 9mm Luger, 40 Smith & Wesson, 357 Sig slide and barrel. Please Note: Full-Size 4.7" Slides and Full-Size 4.7" Barrels are not recommended for this grip module. Brand: Sig Sauer Model: P320 XCompact Laser Grip Module Caliber: 9mm Luger / 40 Smith & Wesson / 357 Sig Color: Black Size: Medium Pistol Size: Compact XSeries Grip Material: Standard Polymer