Uncle Mike's 18112 Mag Cap Swivel Set made of Steel with Blued Finish, 1" Loop Size & Quick Detach Style for Mossberg 590, 835 Includes Two Super Swivels

The Uncle Mike's 18112 Steel Mag Cap Swivel Set with Blued Finish offers a quick-attach sling solution for Mossberg 590 and 835 pump shotguns without any permanent modifications. If you run a tactical or hunting shotgun and want the flexibility of a detachable sling without drilling holes or installing studs, this mag cap system lets you swap between carrying methods in seconds. The swivel mounts directly to your existing magazine cap—just unscrew the factory cap and install the new one with the integrated swivel base. It's that simple, and your shotgun stays stock.

The set pairs a blued steel magazine cap assembly with a 3/4" woodscrew swivel base for the buttstock, so you get front and rear attachment points. Two Super Swivels (the quick-detach connector pieces) come included, meaning you can run a dedicated sling or keep a backup ready. The 1" loop diameter accommodates standard sling hardware, and the blued finish resists corrosion while matching traditional shotgun aesthetics. This approach works especially well for shotgunners who prefer to keep their gun in stock condition or who shoot multiple configurations.

Uncle Mike's has built a reputation on practical, no-fuss shotgun accessories that hunters and sport shooters actually use in the field. This swivel set is straightforward: no gunsmithing, no permanent holes, no guessing. If you want to add a sling to a Mossberg 590 or 835 without altering the gun, or if you want quick-detach capability for quick transitions between carry positions, this kit gives you the hardware to do it cleanly.

Key Features

• Quick-detach sling attachment—no drilling or permanent modifications
• Mounts to magazine cap (factory cap removal required)
• Blued steel construction resists corrosion
• Includes 3/4" woodscrew base for buttstock mounting
• Two Super Swivels for front and rear attachment
• 1" loop diameter fits standard sling hardware
• Designed for Mossberg 590 and 835 shotguns

Specifications

Frequently Asked Questions

Will this work on my Mossberg 590 or 835 without modifications?

Yes. The swivel cap replaces your factory magazine cap—no drilling, gunsmithing, or permanent alterations. Simply unscrew the existing cap and install the new one with the integrated swivel base.

What comes in the box?

The set includes a blued steel magazine cap swivel assembly, a 3/4" woodscrew base for the buttstock, and two Super Swivels for quick-detach sling connection at the front and rear.

Can I remove the sling quickly?

Yes. The two included Super Swivels are quick-detach connectors, so you can disconnect your sling in moments without tools. This is useful if you want to switch to a different carry method or stow your gun without a sling attached.

Does this fit 1" slings?

The loop diameter is 1", so it accommodates standard 1" sling hardware and attachments.