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| 3-Position Adjustable | Allows quick customization for any shooting setup. |
| Dual Compatibility | Fits SIG MPX and SIG MCX platforms (excluding MPX Copperhead models). |
| M1913 Receiver Saddle | Ships ready-to-install with an integrated adjustable housing. |
| Complete Assembly | Arrives pre-assembled for fast installation. |
| US Veteran Designed | Proudly made in the USA. |
The MPX PSB™ is an innovative, 3-position adjustable Pistol Stabilizing Brace® designed specifically to fit the receiver cuts of the SIG SAUER MPX and MCX platforms. It ships as a complete, ready-to-install assembly featuring an integrated M1913 receiver saddle.
MCX Installation: Not compatible with the SIG MCX Stock Adapter Kit. A genuine SIG MCX lower receiver is required for proper fitment.
Note: This brace does not fit certain SIG MPX Copperhead models. Please contact us for clarification before purchase.
| Fit | SIG MPX / SIG MCX |
| Width (max) | 2.25″ |
| Length | 3.875”, 6.0”, 8.25” (adjustable positions) |
| Strap Width | 1.0″ |
| Weight | 19.1 oz |
| Color | Black |
| ● | Complete assembly × 1 |
| ● | Adjustable nylon strap × 1 |