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Uncle Mike's 115 B Magnum Band Swivel Screws are heavy-duty sling hardware designed to secure QD (quick-detach) swivels and sling attachments to rifles and shotguns. Whether you're replacing worn-out fasteners, upgrading an older firearm, or assembling a custom sling setup, these magnum band swivel screws provide the robust connection serious hunters and shooters need. Uncle Mike's has been a trusted name in firearm accessories for decades, and their swivel hardware reflects that reputation for reliability under field conditions.
This hardware set gives you the components to outfit both the front and rear sling attachment points. The standard QD base with its 7/8" machine screw and nut handles the business end, while the rear attachment uses a 3/4" wood screw base—a proven design that works across a wide range of rifle and shotgun platforms. White spacers are included to ensure proper alignment and prevent the hardware from binding or shifting under the stress of carry or shooting.
Installation is straightforward for anyone comfortable with basic gunsmithing or sling work. The machine screw front base allows for tool-free QD attachment and removal, making sling swaps quick when you're moving between hunting scenarios or gear configurations. The rear wood screw base provides permanent or semi-permanent mounting depending on how you choose to install it.
| Brand | Uncle Mike's |
| Product Type | Magnum Band Swivel Screws |
| Model | 115 B |
| Front Base Size | 7/8" machine screw with nut |
| Rear Base Size | 3/4" wood screw |
| Included Components | QD base, nut, rear wood screw base, white spacers |
Uncle Mike's magnum band swivel screws work on rifles and shotguns designed to accept standard sling hardware. The 7/8" QD base and 3/4" wood screw base are common industry sizes, but fit depends on your firearm's specific sling attachment points. If you're replacing existing hardware, measure the holes and base sizes on your current setup to ensure compatibility.
The white spacers maintain proper spacing between the swivel base and the firearm, preventing the hardware from binding, twisting, or shifting during carry or shooting. They ensure the attachment remains solid and aligned.
This set includes the swivel screw hardware—bases, fasteners, and spacers—needed to mount QD swivels front and rear. You'll need to source the sling and swivel attachments separately if you don't already have them.
Yes, basic installation requires standard gunsmith tools and comfort working with firearms hardware. The rear wood screw base screws directly into the firearm's existing holes, while the front QD base is machine-screw mounted. If you're not comfortable with firearm modifications, have a qualified gunsmith handle the installation.

SKU: 121688479 • Width: 3in • Height: 1in • Depth: 5.5in • Weight: 0.06oz