How does the GrovTec GTHM198 install on a hollow synthetic rifle stock compared to standard wood-screw bases?

The GTHM198 utilizes a secure two-piece mating system consisting of a flush external push-button socket and an internal backing panel nut. You drill through the thin wall of your hollow polymer buttstock, allowing the internal nut to clamp the socket firmly in place, unlike wood-screw bases that require thick, solid material to bite into.

Does the GTHM198 base offer limited rotation, or can my sling swivel spin freely?

The GTHM198 features unrestricted 360-degree full rotation, allowing connected push-button QD sling swivels to spin freely without internal stops. If you prefer limited rotation to prevent your sling webbing from twisting during active field carries in the outback, you should look at the GTHM196 variant instead.

Is any special firearms licensing required to purchase the GrovTec GTHM198 in Australia?

No special licensing or regulatory permits are required to purchase the GTHM198 in Australia. Because it is an unpowered, mechanical firearm accessory, it can be freely imported, sold, and shipped across all Australian states and territories.

What kind of swivels and related GrovTec accessories pair best with the GTHM198 for outback hunting setups?

The GTHM198 is designed to accept standard push-button quick-detach (QD) sling swivels. For hunters looking to expand their gear setup, it pairs well with other modular accessories in our range such as the GrovTec GTAC86 rifle cartridge slide or heavy-duty sling swivel sets.

QD Sling Base - Grovtec GTHM198

The GrovTec Hollow Stock Push Button Base (Full Rotation) is a specialized sling mounting socket designed for installation in thin-walled, hollow firearm buttstocks. Engineered with machined steel and finished in a corrosion-resistant black oxide coating, this two-piece hardware system secures standard push-button quick-detach (QD) sling swivels. It utilizes a flush external base paired with an internal panel backer nut, enabling a secure sling attachment point on polymer, synthetic, or fiberglass stocks where direct-threaded sockets cannot hold.

Key Features

Hollow Stock Compatibility: Designed specifically for thin-walled synthetic and polymer stocks requiring a backing panel nut for secure retention.
Full 360-Degree Rotation: Swivel socket features unrestricted 360-degree rotation without internal stops, allowing free sling movement.
Machined Steel Construction: Built from solid machined steel with a protective black oxide finish for field durability and wear resistance.
Two-Piece Mating System: Fastens through drilled stock walls via a 9/16"-18 thread interface to distribute load against the stock's interior wall.

Product Specifications

Brand: GrovTec US, Inc.
Model Number: GTHM198
Category: Hollow stock sling swivel base
Thread Size: 9/16"-18
Rotation: Unrestricted full rotation (360 degrees)
Socket Compatibility: Standard push-button quick-detach (QD) sling swivels
Material: Machined steel
Finish: Black oxide
Packaged Weight: ~62 g (0.137 lb)

Who is the Grovtec Push Button Base For Hollow Stock Full Rotation for?

Hunters retrofitting synthetic polymer rifle stocks — Needs a dedicated hollow stock sling swivel base with a 9/16"-18 thread and internal backer nut to install a push-button QD sling point into thin-walled factory synthetic stocks without stripping out the material.
Shooters customizing hollow-walled shotgun buttstocks — Requires an unrestricted 360-degree rotating push-button base weighing just 62 g packaged to provide continuous sling movement and eliminate binding during transitions on lightweight polymer shotgun furniture.

Less suitable for: Solid-fill synthetic or traditional wooden stocks lacking hollow internal clearance, which require direct-threaded wood-screw-style sling bases; or shooters who need to prevent sling webbing from twisting, who should select a limited-rotation QD socket variant.

SKU	GT40832LP
Model #	GTHM198
Brand	Grovetec
Shipping Weight	1.0000kg

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Grovtec Gthm198 Push Button Base Hollow Stock 360 Rotation Steel

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