About the Sig Sauer MCX/MPX Folding Knuckle Stock Adapter
Steel folding-knuckle adapter that mounts to the MCX/MPX 1913 receiver interface so a brace or stock can fold to the side.
Key Features
- Folding knuckle for MCX/MPX 1913 receiver interface
- Allows brace/stock assembly to fold for storage or transport
- Steel construction
Specifications
| Model | SIG MCX, MCX-SPEAR, MCX-SPEAR LT, SIG MPX |
| Category | Accessories |
| Material | Steel |
| Folding | Yes |
| Locking | No |
| Attachment Type | M1913 |
| Weight | 6.3 oz [180 g] |
| Color | Black |
| Fits | MCX, MPX |
| Part Number | ADAPTER-X-FOLD |
FAQ
What does it fit?
It fits the Sig Sauer MCX, MPX.
Where can I buy it?
Order online or visit Black Bayou Armory in Benton, LA.






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