B&T APC 1913 Adapter (pistol caliber only)

The Haga Defense 1913 Adapter enables mounting of Picatinny (1913)-compatible stocks or braces on pistol caliber B&T APC platforms, providing a robust interface for enhanced configuration options. Precision-machined from 6061 aluminum with an integrated QD sling mount for ambidextrous convenience, this adapter delivers superior durability and functionality in a low-profile design tailored specifically for pistol caliber models.

Specifications

• Material: 6061 aluminum
• Finish: Mil-A-8625 Type III Class 2 hardcoat anodize, black
• Mounting Interface: Standard Mil-Spec 1913 Picatinny rail
• Features: Integrated QD sling mount
• Included: 1913 adapter
• Made in: USA

Compatibility and Installation Notes

• Compatible exclusively with pistol caliber B&T APC models (e.g., APC9, APC45)
• Not compatible with rifle caliber B&T APC models
• Hydraulic buffer is not included
• The factory hydraulic buffer must be removed from the original stock, brace, or endcap and transferred to the new adapter
• The factory buffer is secured with a roll pin that runs side-to-side—remove the roll pin, transfer the buffer, and reuse both the buffer and pin in the Haga Defense adapter
• Drop-in replacement once buffer is transferred—no permanent modifications required

Installation Instructions

1. Safety First: Before beginning installation, make sure the firearm is completely unloaded, the chamber is empty, and the safety is engaged. Remove the magazine, visually and physically inspect the chamber to confirm it is empty, and point the firearm in a safe direction at all times.
2. No further installation instructions available at this time.