





Availability: In Stock
The Midwest Industries Stock Adapter for B&T APC Black is a purpose-built receiver rail adapter that transforms mounting options on your B&T APC9 platform. If you're running a B&T APC and want the flexibility to swap between different stock configurations, arm braces, or sling attachment points, this American-made adapter adds a Picatinny rail section to the rear of your receiver—opening up compatibility with standard tactical stocks and accessories that would otherwise require custom fitting.
Midwest Industries engineered this adapter to install without hassle, letting you upgrade your setup without gunsmithing. Whether you're fine-tuning a dedicated host gun, building a configurable platform for different roles, or simply want aftermarket stock options beyond what ships standard, this adapter handles the job cleanly and decisively.
Built in the USA and backed by Midwest Industries' commitment to precision machining and domestic manufacturing, the stock adapter reflects the kind of straightforward, no-nonsense engineering that matters in the field. It's the kind of part that makes sense when you want control over your gun's ergonomics and modularity without compromise.
This adapter is designed to fit the B&T APC9. Verify your exact model against the product specifications before ordering.
Once installed, the Picatinny rail accepts any standard mil-spec stock, arm brace, or sling adapter designed for that mounting interface. Check your chosen stock or brace documentation to confirm compatibility with Picatinny mounting.
No. Midwest Industries designed this adapter for easy installation without professional gunsmithing, though installation instructions should be reviewed before proceeding.


SKU: 121688167 • Width: 2.5in • Height: 2.5in • Depth: 4in • Weight: 0.31oz