HB Industries® Springfield Kuna 1913 Stock Adapter

The HB Industries 1913 Stock Adapter replaces the factory polymer rear adapter on the Springfield Kuna with a precision-machined aluminum unit featuring a standard M1913 Picatinny rail interface. It allows the installation of compatible fixed or folding stocks while adding an integrated QD sling socket for quick-detach sling attachment.

M1913 Picatinny Stock Interface

The adapter converts the rear of the Springfield Kuna to a standard M1913 Picatinny rail interface, making it compatible with a wide range of fixed and folding stocks designed for this mounting standard. It provides a versatile foundation for configuring the firearm to the shooter's preferred setup.

Direct Replacement Design

The adapter installs in place of the factory polymer rear adapter without requiring permanent modification or additional mounting components. It is engineered specifically for the Springfield Kuna to ensure proper fit and alignment.

Integrated QD Sling Socket

An integrated push-button QD sling socket provides a convenient rear attachment point for a compatible quick-detach sling swivel. This eliminates the need for a separate sling mount while keeping the overall profile compact.

Machined 6061-T6 Aluminum

Precision-machined from 6061-T6 aluminum, the adapter features a MIL-A-8625 Type III hard-anodized finish for excellent wear and corrosion resistance. Compared to the factory polymer component, the aluminum construction provides increased rigidity at the stock mounting interface.

Benefits You Need to Know:

• Designed for the Springfield Kuna
• Standard M1913 Picatinny rail stock interface
• Compatible with fixed and folding stocks designed for M1913 rails
• Direct replacement for the factory polymer rear adapter
• No additional mounting hardware required
• Integrated push-button QD sling socket
• Precision-machined from 6061-T6 aluminum
• MIL-A-8625 Type III hard-anodized finish
• Made in the USA