
Availability: In Stock
The Sig Sauer MCX Picatinny stock adapter lets you upgrade your MCX rifle by installing Sig's folding stock assemblies where the original setup may be limited. If you're running an MCX and want the flexibility of a folding design for storage, transport, or specialized shooting positions, this adapter bridges the gap between your rifle's receiver and compatible aftermarket stocks. It's a straightforward mechanical upgrade for shooters looking to customize their platform.
This adapter is built for MCX-pattern rifles and accepts Sig Sauer MCX folding stock assemblies specifically. It won't accommodate collapsible stocks or braces, so verify your intended stock assembly is MCX-folding compatible before purchasing. The Picatinny interface means it integrates cleanly with Sig's ecosystem and maintains your rifle's overall aesthetics.
Before you buy: check your state and local laws. Folding stocks are regulated or restricted in many jurisdictions, and combining this adapter with certain other components may create a legally prohibited configuration where you live. It's your responsibility to ensure compliance with all federal, state, and local firearms laws before use or possession. If you're unsure about legality in your area, contact your local law enforcement or a licensed firearms dealer first.
No. This adapter is designed only for MCX folding stock assemblies, not collapsible stocks or braces. Verify that your intended stock is a folding-type MCX assembly before purchasing.
This adapter works with Sig Sauer MCX folding stock assemblies. Check with Sig or your dealer to confirm which MCX folding stocks are available for your configuration.
Yes. Many states and localities regulate or prohibit folding stocks, and certain combinations of parts may be illegal where you live. Before purchasing or using this adapter, verify compliance with federal, state, and local firearms laws in your jurisdiction.

SKU: 115657398 • Width: 3.5in • Height: 1.6in • Depth: 4in • Weight: 0.21oz





Availability: In Stock
The Sig Sauer MCX Picatinny stock adapter lets you upgrade your MCX rifle by installing Sig's folding stock assemblies where the original setup may be limited. If you're running an MCX and want the flexibility of a folding design for storage, transport, or specialized shooting positions, this adapter bridges the gap between your rifle's receiver and compatible aftermarket stocks. It's a straightforward mechanical upgrade for shooters looking to customize their platform.
This adapter is built for MCX-pattern rifles and accepts Sig Sauer MCX folding stock assemblies specifically. It won't accommodate collapsible stocks or braces, so verify your intended stock assembly is MCX-folding compatible before purchasing. The Picatinny interface means it integrates cleanly with Sig's ecosystem and maintains your rifle's overall aesthetics.
Before you buy: check your state and local laws. Folding stocks are regulated or restricted in many jurisdictions, and combining this adapter with certain other components may create a legally prohibited configuration where you live. It's your responsibility to ensure compliance with all federal, state, and local firearms laws before use or possession. If you're unsure about legality in your area, contact your local law enforcement or a licensed firearms dealer first.
No. This adapter is designed only for MCX folding stock assemblies, not collapsible stocks or braces. Verify that your intended stock is a folding-type MCX assembly before purchasing.
This adapter works with Sig Sauer MCX folding stock assemblies. Check with Sig or your dealer to confirm which MCX folding stocks are available for your configuration.
Yes. Many states and localities regulate or prohibit folding stocks, and certain combinations of parts may be illegal where you live. Before purchasing or using this adapter, verify compliance with federal, state, and local firearms laws in your jurisdiction.
SKU: 115657398 • Width: 3.5in • Height: 1.6in • Depth: 4in • Weight: 0.21oz
