Will the GrovTec GTSW34 swivel set fit my Remington 870 Wingmaster or 20-gauge shotgun?

No, this specific model is exclusively engineered for the 12-gauge Remington 870 Express and will not fit Wingmaster models or 20-gauge shotguns. Wingmaster models require a different swivel set due to their distinct magazine cap retention design, and 20-gauge tubes have a narrower diameter.

What size sling loops are included, and will my existing 1.25-inch sling fit?

The GTSW34 set includes 1.0-inch (25.4 mm) GT locking sling loops and is strictly designed for slings up to 1 inch wide. If you have a wider 1.25-inch sling, it will not fit through these loops, and you would need an alternative 1-1/4 inch swivel set.

Are there any special firearm compliance requirements or electrical certifications needed for this set in Australia?

As this is a purely mechanical firearm accessory, it does not require electrical certification or SAA/RCM compliance. Under Australian state and territory firearms legislation, sling mounting hardware and replacement magazine caps are generally unrestricted Category A accessories, provided they do not alter legal magazine capacities.

Remington 870 Swivel Set - GrovTec GTSW34

The GrovTec Remington 870 Express 12 Gauge Swivel Set (GTSW34) provides a complete hardware conversion for mounting a carry sling directly to a Remington 870 Express 12 Gauge shotgun. The set replaces the factory magazine cap with a threaded steel cap featuring an integrated swivel stud and internal detent mechanism designed to stay locked under 12-gauge recoil without barrel or magazine alterations. Finished with a corrosion-resistant black-oxide coating, this mechanical sling swivel set includes a 3/4" rear wood screw stud and a pair of 1.0 inch (25.4 mm) GT locking swivels with knurled collars to prevent accidental field detachment.

Key Features

Drop-In Magazine Cap Replacement: Screws directly onto the magazine tube of a Remington 870 Express 12 Gauge without requiring permanent firearm modifications.
Internal Detent System: Machined specifically to engage the factory internal detent retention system of the 870 Express to prevent the cap from loosening during firing.
GT Locking Swivel Mechanism: Utilises knurled collars on both swivels to mechanically lock the loops closed during movement.
Corrosion-Resistant Hardware: Formed from steel and stainless steel components treated with a black-oxide finish for outdoor hunting environments.
Complete Installation Kit: Includes the detent-compatible forend cap, a 3/4" rear buttstock wood screw stud, stock spacer washers, and two 1.0 inch sling swivels.

Product Specifications

Brand: GrovTec
Model / MPN: GTSW34
Firearm Compatibility: Remington 870 Express (12 Gauge only)
Sling Loop Width: 1.0 inch (25.4 mm)
Rear Stud Thread Length: 3/4" wood screw
Material: Steel / stainless steel hardware
Finish: Black-oxide
Operating Mechanism: Mechanical screw-lock swivel with internal detent cap

Who is the Grovtec Remington 870 Express, 12 Gauge Swivel Set 1" Loops Black for?

Remington 870 Express 12 Gauge waterfowl and deer hunters — Attaches standard 1.0 inch (25.4 mm) carry slings using an integrated detent magazine cap and a 3/4" rear wood screw stud for hands-free carrying in field and wetland conditions.
Pest control operators using Remington 870 Express shotguns — Provides a dedicated shotgun sling swivel set with 1.0 inch (25.4 mm) locking loops to secure utility slings without modifying the factory 12-gauge magazine tube.

Less suitable for: Owners of Remington 870 Wingmaster or Police models (which require external-lip detent caps), 20-gauge shotguns (which require a 20-gauge-specific cap assembly), or users carrying heavy web slings measuring 1.25 inches (32 mm) or wider, who require a 1-1/4" loop swivel set.

SKU	GT40907LP
Model #	GTSW34
Brand	Grovetec
Shipping Weight	1.0000kg

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Grovtec Gtsw34 Shotgun Swivel Set 1 Inch Loops Black

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