Description
The GrovTec GTSW308 magazine cap is a direct replacement for the factory thumb bolt on Mossberg 500 shotguns chambered in 12 Gauge. Purpose-built to provide a secure mounting point for 1″ push button sling swivels, this mag cap lets you run a standard QD-style swivel for fast sling attachment and removal at the range, in the field, or on duty.
Precision-built from steel and finished in a low-glare black oxide, the GTSW308 is engineered to handle the rough service a pump-action shotgun sees in everyday use. It installs in place of the factory mag cap and threads on the same way, giving you sling-ready functionality without permanent modification to the firearm.
100% made in the USA to GrovTec’s quality standards for dependable, long-term service.
Set includes:
- One 12 Gauge Mossberg 500 magazine cap (steel, black oxide)
- One standard 1″ loop push button swivel
A simple, purpose-built upgrade that turns any Mossberg 500 into a sling-capable, fast-handling defensive, hunting, or tactical shotgun.
