Will the GrovTec GTSW297 magazine cap fit my 12-gauge Remington 870 Express with an extended tubular magazine?

No, the GTSW297 is exclusively built for standard, non-extended factory magazine tube ends and cannot serve as a magazine extension nut. It is designed to replace the standard factory end cap on 12-gauge Remington 870 and 1100 shotguns that use a barrel-ring ball-detent interface.

Does the GrovTec GTSW297 require any gunsmithing or permanent modifications to install on my shotgun?

No gunsmithing or permanent alteration is required. The all-steel cap simply screws directly onto the magazine tube in place of your factory end cap, allowing for a quick and secure installation using the existing barrel detent retention.

What size sling webbing is compatible with the included quick-detach swivel?

The included heavy-duty push-button quick-detach sling swivel features a standard 1-inch (25.4 mm) loop suitable for standard sling webbing. If you use a wider 1.25-inch sling, you will need to swap out the included swivel for a compatible 1.25-inch version from the GrovTec range.

Is this passive firearm hardware compliant with Australian regulations and suitable for outback hunting conditions?

Yes, the GTSW297 is a completely non-powered mechanical accessory with no electrical components, meaning it requires no RCM or SAA electrical safety certification for use in Australia. Crafted from machined steel with a corrosion-resistant black oxide finish, it is fully suited for reliable performance in rugged Australian bush and outback field environments.

Remington 870 Magazine Cap - GrovTec GTSW297

The GrovTec Remington 870 / 1100 Push Button Magazine Cap (MPN: GTSW297) is an all-steel, direct-replacement shotgun magazine cap sling mount designed for 12-gauge Remington shotguns. It screws directly onto factory magazine tubes utilizing the standard barrel detent retention system without requiring gunsmithing or permanent modifications. The cap features an integrated quick-detach (QD) swivel socket in its face and comes packaged with a heavy-duty push-button swivel to allow rapid detachment of the front sling point when transitioning between carrying and shooting in the field.

Key Features

Direct Factory Replacement: Replaces the standard factory magazine end cap on 12-gauge Remington 870 and 1100 series shotguns.
All-Steel Construction: Machined from solid steel and treated with a black oxide finish for rust and corrosion resistance in outdoor field environments.
Integrated Push-Button Socket: Machined socket accepts standard push-button QD swivels, twist-lock swivels, or GrovTec Multi-Adaptor studs.
Included QD Swivel: Supplied with one heavy-duty push-button QD sling swivel designed for standard 1-inch (25.4 mm) webbing.
Detent-Compatible Interface: Built for Remington barrels utilizing a standard ball-detent retention interface on the barrel ring.

Product Specifications

Brand: GrovTec US, Inc.
Model / MPN: GTSW297
Calibre Interface: 12-Gauge only
Platform Compatibility: Remington 870 and Remington 1100 (standard detent retention)
Material: Machined steel
Finish: Black oxide
Sling Webbing Width: 1-inch (25.4 mm)
Operation: Fully mechanical (passive)

Who is the Grovtec Remington 870 Express Magazine Cap 12 Gauge for?

Field hunters carrying Remington 12-gauge shotguns — requires a rapid-detach front shotgun magazine cap sling mount with a 1-inch (25.4 mm) loop to carry their 12-gauge firearm comfortably across long distances and quickly unclip the sling when setting up in dense cover.
Clay target and sport shooters using Remington shotguns — needs a secure 1-inch (25.4 mm) QD attachment point on a 12-gauge magazine cap that allows immediate removal of the carry sling at the firing line to prevent snagging during target transitions.

Less suitable for: Owners of 20-gauge or .410 shotguns, non-Remington platforms (such as Mossberg, Winchester, or Beretta), or setups with extended tubular magazine systems; these configurations require gauge-specific replacement caps, platform-specific thread mounts, or dedicated magazine extension clamp-on sling mounts.

SKU	GT40914LP
Model #	GTSW297
Brand	Grovetec
Shipping Weight	1.0000kg

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Grovtec Gtsw297 Magazine Cap Remington 870 12 Gauge Steel Qd

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