Will the GrovTec GTSW26 swivel set fit my 1.25-inch tactical webbing sling?

No, this specific model features 1.0-inch (25.4 mm) loops designed for standard carry slings. Slings wider than 1.0 inch will bunch up or fail to seat properly, so you would require a dedicated 1.25-inch swivel set for wider webbing.

Does installing the GrovTec Ithaca swivel set require any permanent modifications to my shotgun?

On most standard Ithaca Model 37, 87, and Deerslayer variants, the front custom swivel base screw adaptor threads directly into the factory threaded barrel lug without permanent changes. However, certain older or non-standard Ithaca 37 variations with non-threaded front lugs will require drilling and tapping for an 8-36 thread.

Do I need any special firearms licences or import permits to purchase this swivel set in Australia?

No, sling attachment hardware is considered an un-serialized general accessory across all Australian states and territories. It does not require an import permit or firearms licence to purchase, though it is intended for legally owned Ithaca shotgun platforms.

How does the locking mechanism prevent accidental detachment during long treks in the bush?

The GTSW26 utilizes GrovTec's GT locking knurled collar, which closes securely over the swivel stud. This mechanical design ensures that the swivels cannot accidentally open or detach while you are navigating rough terrain or carrying your shotgun over multi-day hunts.

Ithaca Sling Swivels - GrovTec GTSW26

The GrovTec Ithaca M37, M87 & Deerslayer Locking Swivel Set (GTSW26) is a precision-machined steel hardware kit designed to mount a two-point sling to compatible Ithaca pump-action shotguns. Built with a non-reflective black oxide finish for field corrosion resistance, this set integrates GrovTec's GT locking knurled collar mechanism to prevent accidental detachment during active movement. It includes a custom forend adapter screw engineered to thread directly into the factory barrel lug of Ithaca platforms, paired with a standard rear stud for wood stocks.

Key Features

Dedicated Ithaca Mounting: Includes a custom forend base screw adapter designed to thread directly into factory-threaded barrel lugs on Ithaca Model 37, Model 87, Deerslayer, DSPS, and M&P shotguns.
GT Locking Mechanism: Knurled locking collars close over the swivel studs to eliminate unintentional opening or unhooking while traversing rough terrain.
All-Steel Construction: Precision-machined steel build with a non-reflective black-oxide finish for long-term mechanical durability.
Complete Installation Kit: Supplied with one custom front adapter screw, one rear wood screw swivel stud, synthetic white spacers, and one pair of 1.0-inch locking swivels.

Product Specifications

Model Number: GTSW26
Loop Width / Webbing Size: 1.0 inch (25.4 mm)
Rear Stud Type: 3/4" rear wood screw swivel stud
Front Mounting Interface: Custom threaded forend adapter screw (fits standard Ithaca barrel lugs; unthreaded variations require drilling and tapping for 8-36 thread)
Material: Machined steel
Finish: Non-reflective black oxide
Hardware Included: 2 × 1" GT Locking Swivels, 1 × Forend custom adapter screw, 1 × 3/4" rear wood screw stud, synthetic spacers

Who is the Grovtec Ithaca M37, M87 And Deerslayer Swivel Set 1" Loops Black for?

Ithaca Model 37, 87, and Deerslayer shotgun owners — Requires fitting a dedicated shotgun sling swivel set using 1.0 inch (25.4 mm) sling loops and a 3/4" rear wood screw swivel stud to securely carry their firearm over long field walks without stock modifications.

Less suitable for: Firearm setups using carry webbing wider than 1.0 inch (such as 1.25-inch tactical or military slings, which will bunch in these loops), which require a dedicated 1.25" shotgun sling swivel set; and older Ithaca 37 shotguns with unthreaded front lugs unless drilled and tapped specifically for an 8-36 thread.

SKU	GT40920LP
Model #	GTSW26
Brand	Grovetec
Shipping Weight	1.0000kg

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Grovtec Gtsw26 Ithaca Shotgun Swivel Set 1 Inch Black Oxide

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