WOOX GLADIATORE CLUB GRIP KIT - WALNUT

The GLADIATORE Club Grip + Fore End kit turns a Mossberg or Remington 12 ga into a more controllable, purpose-driven pump, pairing a compact rear grip with a matching M-LOK fore-end. It delivers cleaner ergonomics, stronger purchase, and a premium aesthetic upgrade without compromising durability or ease of installation.

Use / positioning
The WOOX GLADIATORE Club Grip + Fore End kit is built for Mossberg and Remington 12 ga pump users who want a premium wood upgrade with real gains in control and handling. It targets Shockwave, M88, M500, M590, M590A1 and Remington 870 & Tac14 12 ga platforms used for home defense, dynamic shooting or serious training with a compact shotgun. Both rear grip and fore-end are matched in geometry and finish to deliver a compact, controllable setup with a distinctive walnut signature. 

Ergonomics and control
The Club Grip provides a compact, ambidextrous rear grip with aggressive checkering for a locked-in hold, even with sweat, rain or gloves. Its dimensions are listed at 5.75″ L x 1.5″ W x 3″ H, keeping it short and maneuverable while still offering solid support. The Fore End adds a flared profile with extended length (8.75″ L) for a secure, repeatable front grip and efficient pump stroke. Aggressive checkering on both parts delivers positive feedback and helps maintain control under heavy 12 ga recoil. 

Construction and materials
Both components are made from high-grade American walnut with a water-resistant coating designed for real field use. Italian design and manufacturing give the kit its “Italian lines, American soul” identity: refined styling without compromising function. The fore-end integrates M-LOK® slots at 3 and 9 o’clock for mounting lights, slings or other accessories while preserving the wood aesthetic. The grip and fore-end share the same protective finish and ergonomics, built to keep the gun controllable on stout defensive loads. 

Firearm / action tube compatibility
The kit is listed as compatible with Mossberg Shockwave, M88, M500, M590, M590A1 and Remington 870 & Tac14 in 12 gauge. It fits both 6 3/4″ and 7 3/4″ action tubes, provided the correct variant is selected. WOOX provides a dedicated compatibility guide to identify the action tube type based on model and production period; checking this guide before ordering and installing is essential. The fore-end is specified to fit 12 ga tubes only and does not fit .410 or 20 ga. WOOX notes that it is not heat-shield compatible out of the box; minor modifications are mentioned but performed at the user’s own risk and void warranty coverage. 

Installation / kit contents
The kit includes:

• 1 GLADIATORE Club Grip in American walnut, with mounting hardware;

• 1 GLADIATORE Fore End in American walnut, with mounting hardware;

• 1 Shotgun Fore End Removal Wrench to ease removal of the factory fore-end and installation of the WOOX part.

The rear grip installs via a single central screw, while the fore-end is mounted on the action tube using the supplied wrench and hardware. WOOX stresses the importance of selecting the correct variant and action tube length, and of following the official manuals and diagrams to avoid damage to the components. 

Legal notes and warnings
WOOX documentation repeatedly emphasizes confirming compliance with local and federal regulations prior to installing its Gladiatore components. Any change to a firearm’s configuration, especially short 12 ga platforms like Shockwave or Tac14, must be evaluated under the applicable law in the user’s jurisdiction. The manufacturer further warns that:

• assembling the wrong fore-end variant or on the wrong action tube may damage the product;

• products damaged by incorrect assembly may be subject to restocking fees;

• modified items (for example altered to clear a heat shield) are not covered by warranty.

In practice, the user should verify model, gauge, action tube length and the WOOX compatibility chart and manuals before installing the kit, and keep factory parts available for a possible return to OEM configuration. 

• Complete GLADIATORE Club Grip + Fore End kit for Mossberg Shockwave/M88/M500/M590/M590A1 and Remington 870 & Tac14 12 ga

• High-grade American walnut with water-resistant finish, ambidextrous geometry

• Club Grip: 5.75″ × 1.5″ × 3″, weight 7.1 oz

• Fore End: 8.75″ length, weight 7 oz, M-LOK® slots at 3 and 9 o’clock

• Compatible with 6 3/4″ and 7 3/4″ action tubes, 12 ga only

• Includes shotgun fore-end removal wrench and mounting hardware, use WOOX compatibility guide before installation