Will the GrovTec GTSW31 fit my Mossberg 590 or 835 shotgun?

No, the GTSW31 is custom-engineered specifically for the Mossberg 500 pump-action model using a machine-screw fore-end base and a 0.75-inch rear wood screw swivel stud. For Mossberg 590 or 835 models, you will need an alternate model such as the GTSW38 to ensure proper fitment.

What sling width is compatible with this GrovTec swivel set?

This set is engineered strictly for 1.0-inch sling webbing. If you plan to use wider 1.25-inch or 1.5-inch tactical or padded webbing, you will need to choose a dedicated 1-1/4 inch swivel model instead.

How secure is the sling attachment when carrying the shotgun through the Australian bush?

The GTSW31 features GrovTec's positive knurled-collar locking swivel design, which completely eliminates accidental gate openings and detachment under heavy movement. Built with all-steel construction and a black oxide finish, the set is rated to withstand up to 300 lbs of tension, ensuring reliable performance during rugged multi-day outback carries.

Does installing the rear swivel stud require any gunsmithing modifications?

Yes, installation of the included 0.75-inch rear wood screw swivel stud requires a minor modification, specifically drilling a pilot hole into your wooden or synthetic stock. The kit also includes a custom machine-screw fore-end base, spacer washer, and a matched pair of 1-inch GT locking swivels for a complete two-point setup.

Mossberg 500 Swivel Set - GrovTec GTSW31

The GrovTec Shotgun Locking Swivel Set for Mossberg 500 (MPN: GTSW31) provides a dedicated two-point sling mounting solution for Mossberg 500 pump-action shotguns. Built entirely from steel with a non-reflective black oxide finish, the set includes a matched pair of 1.0-inch GT Locking Swivels, a custom machine-screw fore-end base, a 0.75-inch rear wood screw stud, and an installation spacer. The knurled-collar locking mechanism prevents accidental gate release under movement, allowing hunters and shooters to carry standard 1-inch webbed or leather slings securely in the field.

Key Features

Mossberg 500 Interface: Engineered specifically for Mossberg 500 fore-end machine-screw assemblies, replacing factory hardware without modifying the front magazine tube.
GT Positive Locking Mechanism: Features knurled threaded collars on both 1.0-inch loops to prevent unintentional opening and sling detachment.
All-Steel Construction: Manufactured with solid steel hardware rated for up to 300 lbs (approximately 136 kg) of tension.
Corrosion-Resistant Finish: Treated with anti-glare black oxide to resist rust and moisture exposure in outdoor environments.
Complete Mounting Kit: Supplied with a 0.75-inch rear stock screw stud, a front machine-screw stud, a spacer, and two 1.0-inch locking swivels.

Specifications

Manufacturer Part Number (MPN): GTSW31
Material: Steel
Finish: Black oxide
Sling Loop Width: 1.0 inch (25.4 mm)
Tension Load Capacity: 300 lbs (~136 kg)
Rear Stud Thread Length: 0.75 inch (3/4") wood screw
Packaged Weight: ~0.10 lbs (~45 g)
Firearm Compatibility: Mossberg 500 pump-action shotguns utilizing a machine-screw fore-end base

Who is the Grovtec Mossberg 500 Swivel Set 1" Loops Black for?

Mossberg 500 owners hunting in the Australian bush — requires a shotgun sling swivel set engineered with a 300 lbs tension capacity to reliably support long treks across rugged terrain without hardware failure.
Primary producers carrying shotguns for farm pest control — benefits from the included 0.75-inch rear wood screw swivel stud and dedicated front machine-screw base to securely mount a hands-free utility sling to stock farm firearms.

Less suitable for: Firearm setups utilizing 1.25-inch or 1.5-inch tactical webbing (requires a dedicated 1-1/4" swivel model), as well as Mossberg 590 or 835 shotguns, which require an alternate platform-specific mounting set such as the GTSW38.

SKU	GT40911LP
Model #	GTSW31
Brand	Grovetec
Shipping Weight	1.0000kg

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Grovtec Gtsw31 Mossberg 500 Swivel Set 1 Inch Black

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