Shotgun compatibility is determined by geometry, not branding. Receiver pattern, action-tube length, gauge, product configuration, and factory setup decide whether a stock or fore-end will interface correctly with the shotgun beneath it.
The WOOX Gladiatore line includes complete stock + fore-end kit options and fore-end-only options. Those should not be treated as the same fitment question. WOOX lists Gladiatore kit options for supported Mossberg-pattern shotguns with 6¾-inch and 7¾-inch action-tube variants, and for Remington 870 / Tac-14 12-gauge platforms. The Gladiatore fore-end page also lists Mossberg Shockwave compatibility, but Shockwave owners should confirm the exact gauge, platform, and action-tube setup before ordering.
This guide explains how to read the fit table before ordering.
Understanding the Platforms Gladiatore Was Built For
The WOOX Gladiatore line is built around supported pump-action shotgun platforms, but the exact product matters. A complete stock + fore-end kit and a fore-end-only purchase may have different compatibility details.
Common platform groups include:
- Mossberg-pattern platforms: Maverick 88 / M88, Mossberg 500, Mossberg 590, Mossberg 590A1, and Shockwave configurations
- Remington-pattern platforms: Remington 870 and Tac-14 configurations
The rear stock and the fore-end do not depend on the same measurement. The stock depends on the receiver interface. The fore-end depends on the action-tube system, gauge, and the correct fore-end variant.
That distinction matters. A shotgun may accept a Gladiatore stock where listed, but still require the correct fore-end selection before the walnut fore-end will install correctly.
WOOX lists the Gladiatore stock and fore-end kit for supported Mossberg-pattern and Remington 870 / Tac-14 configurations, with separate Mossberg action-tube choices for 6¾ inches and 7¾ inches. For fore-end-only purchases, confirm the gauge and current product-page compatibility before ordering.
Why Action-Tube Length Matters on Mossberg-Pattern Guns
For Mossberg-pattern installations, the most important fore-end measurement is the action-tube length.
Mossberg-pattern pump guns can use different action-tube lengths, and the Gladiatore fore-end must match the correct tube variant. The WOOX Gladiatore kit page offers Mossberg-pattern options for both 6¾-inch action tube and 7¾-inch action tube configurations. WOOX also warns that attempting to assemble the wrong Gladiatore fore-end variant can damage the product.
That is why measurement matters more than the model name alone.
A Maverick 88 / M88, Mossberg 500, Mossberg 590, Mossberg 590A1, or Shockwave should be checked by its actual fore-end/action-tube setup before ordering. Do not rely only on the shotgun name. Measure the tube, then select the matching Gladiatore fore-end variant.
The walnut fore-end is made to fit a specific mechanical interface. If the tube length is wrong, the installation should stop before force is applied.
Why WOOX Measures Tube Length Instead of Naming Models Only
Aftermarket shotgun fitment is often discussed by model name, but model names do not always tell the full installation story.
A model name can tell you the receiver family. It does not always confirm the action-tube length, fore-end assembly, gauge, production variation, or existing aftermarket parts. Measuring the tube and confirming the current product page removes assumptions and helps the Gladiatore fore-end install against the correct mechanical layout.
For Mossberg-pattern shotguns, the fit decision should begin with three questions:
- Is the shotgun a supported Mossberg-pattern pump platform?
- Which gauge is the shotgun?
- Which action tube does it use: 6¾ inches or 7¾ inches?
For Remington 870 and Tac-14 platforms, the fit decision is different because the WOOX Gladiatore Remington kit option is dimensioned for the supported Remington-pattern configuration listed on the current product page.
How the Gladiatore Fits Across Mossberg, Maverick, Shockwave, and Remington Models
When the receiver pattern, gauge, and fore-end tube configuration are matched correctly, the Gladiatore components install as intended.
Maverick 88 / M88, Mossberg 500, 590, and 590A1
The Gladiatore stock is listed for supported Mossberg-pattern platforms. The fore-end fit depends on selecting the correct action-tube variant: 6¾ inches or 7¾ inches. WOOX’s compatibility table lists M88, M500, M590, and M590A1 across the stock and both action-tube options on the kit page.
Mossberg Shockwave
WOOX lists Shockwave among supported Gladiatore fore-end platforms. Because Shockwave configurations can differ from traditional shoulder-stocked Mossberg models, confirm the exact gauge, platform, and action-tube setup before selecting the Gladiatore fore-end.
Remington 870 and Tac-14
WOOX lists Remington 870 and Tac-14 12-gauge configurations on the Gladiatore Stock + Fore-End Kit page. For fore-end-only purchases, confirm the exact Remington configuration on the current product page before ordering.
The Gladiatore stock and fore-end should not be treated as universal across every Remington gauge or every non-standard pump assembly.
Gauge and Product Configuration Matter
Gauge is a fitment factor, but the correct wording depends on the specific Gladiatore product.
The Gladiatore fore-end is listed by WOOX for 12-gauge and 20-gauge tubes. It is not compatible with .410 gauge. For complete stock + fore-end kits and specific platform configurations, confirm the current WOOX product page before ordering.
Do not assume that fore-end-only compatibility automatically confirms complete stock + fore-end kit compatibility. Confirm the exact product, gauge, platform, and action-tube configuration before ordering.
The rule is simple: Gladiatore fitment starts with the current product page, the shotgun’s gauge, and the mechanical interface.
Verifying Your Shotgun Before Ordering
Most fitment questions can be reduced to four checks.
First, confirm the platform:
- Mossberg-pattern pump platform
- Remington 870 / Tac-14 platform
Second, confirm the exact Gladiatore product:
- Complete stock + fore-end kit
- Fore-end-only product
- Stock-only product
Third, confirm the gauge:
- The Gladiatore fore-end is listed for 12-gauge and 20-gauge tubes
- The Gladiatore fore-end is not compatible with .410 gauge
- Complete kit compatibility should be confirmed on the current product page
Fourth, if the shotgun is Mossberg-pattern, measure the action tube:
- 6¾ inches
- 7¾ inches
For Mossberg-pattern guns, choose the Gladiatore fore-end variant that matches the measured action tube. WOOX states that selecting the wrong variant can damage the product, so the measurement should be made before ordering, not during forced installation.
For Remington 870 and Tac-14 platforms, select the current compatible Gladiatore option and confirm that the shotgun has a standard compatible pump-action configuration.
If the shotgun has a non-standard pump assembly, semi-automatic action, aftermarket heat shield, modified fore-end hardware, or unusual receiver/tube configuration, contact WOOX before ordering. WOOX notes that Gladiatore fore-end compatibility does not extend to semi-automatic shotguns or non-standard pump assemblies.
Fit Table
Use this table as a starting point. Always confirm the current WOOX product page before ordering.
| Platform | Gladiatore Stock | Gladiatore Fore-End | What to Check |
|---|---|---|---|
| Maverick 88 / M88, Mossberg 500 / 590 / 590A1 | Compatible where listed by WOOX | Compatible when the correct 6¾-inch or 7¾-inch action-tube variant is selected | Confirm gauge, platform, and action-tube length |
| Mossberg Shockwave | Check exact configuration | Compatible where listed by WOOX when matched to the correct setup | Confirm gauge, platform, and action-tube setup |
| Remington 870 | Compatible where listed by WOOX | Compatible where listed by WOOX | Confirm gauge and standard compatible pump-action configuration |
| Remington Tac-14 | Compatible where listed by WOOX | Confirm on the current product page before ordering | Confirm gauge, configuration, and applicable installation requirements |
| 20-gauge platforms | Confirm complete-kit compatibility on the current WOOX product page | Listed by WOOX for 20-gauge tubes where applicable | Confirm gauge, platform, tube length, and exact product configuration |
| .410 platforms | Confirm current product page; do not assume compatibility | Not compatible | Gladiatore fore-end is not compatible with .410 gauge |
Before You Install
Do not force the stock or fore-end into place.
Stop if:
- The fore-end does not slide correctly over the tube
- The action bars bind
- The fore-end does not cycle smoothly
- The stock does not seat against the receiver
- The shotgun has non-standard hardware that interferes with installation
- A heat shield or modified assembly blocks fitment
WOOX notes that the Gladiatore fore-end is not compatible with a heat shield upon purchase. WOOX also states that modification is at the owner’s risk and modified items are not covered by warranty.
Configuration note: Shockwave and Tac-14 owners should confirm compliance with all applicable local, state, and federal regulations before installing any stock, grip, or fore-end component. WOOX also advises confirming compliance before installation.
Correct fitment is part of the standard. A walnut shotgun stock or fore-end should begin with the right mechanical interface.
FAQs
What shotguns are compatible with the WOOX Gladiatore?
The WOOX Gladiatore is designed for supported pump-action shotgun configurations, including Maverick 88, Mossberg 500, 590, 590A1, Remington 870, and Tac-14 configurations where listed by WOOX. The Gladiatore fore-end page also lists Mossberg Shockwave compatibility. For Mossberg-pattern fore-ends, action-tube length must be confirmed before ordering.
Does the WOOX Gladiatore fit the Mossberg Shockwave?
WOOX lists Shockwave among supported Gladiatore fore-end platforms. Confirm the exact gauge, platform, and action-tube setup before selecting the fore-end variant.
Is the WOOX Gladiatore compatible with Remington 870?
Yes. WOOX lists Gladiatore compatibility for Remington 870 platforms where specified on the current product page, and the Gladiatore Stock + Fore-End Kit page also lists Tac-14 12-gauge configurations. For fore-end-only purchases, confirm the current product page before ordering.
Does the WOOX Gladiatore fit 20-gauge or .410 shotguns?
The Gladiatore fore-end is listed by WOOX for 12-gauge and 20-gauge tubes. It is not compatible with .410 gauge. For complete stock + fore-end kits and specific platform configurations, confirm the current WOOX product page before ordering.
Why does action-tube length matter?
Action-tube length determines which Mossberg-pattern Gladiatore fore-end variant should be selected. WOOX offers Mossberg-pattern Gladiatore fore-end options for 6¾-inch and 7¾-inch action tubes. Using the wrong variant can damage the product.
