
Availability: In Stock
Current Stock: Out of stock
The SB Tactical MPX PSB folding pistol brace with 1913 Picatinny adapter gives you a compact, shootable platform for PCCs and other modern sporting rifles that accept M1913 interfaces. Built on a steel hinge design that locks solid in both folded and extended positions, this brace folds low along the receiver for easy carry and quick deployment when you need it. Whether you're running a SIG MPX, MCX, Rattler, or any rifle with a rear Picatinny rail, this adapter transforms your setup into something genuinely more stable and controllable on the range or in the field.
The FS1913 uses a lightweight 6061 aluminum strut paired with an adjustable nylon strap, keeping total weight minimal while maintaining rigidity. Pull-through design means you can snap it into place in a heartbeat—no tools, no fumbling. It's designed and manufactured in the USA by SB Tactical, a company founded by veterans who understand what shooters actually need.
This is a complete assembly: everything ships together and ready to attach to any M1913-compatible receiver. The brace locks securely whether folded or extended, eliminating wobble and rattle during shooting. If you're building a modern rifle platform or upgrading an existing one, this is the kind of accessory that makes real-world difference in handling and control.
| Manufacturer | SB Tactical |
| Model | FS1913 Folding Picatinny Pistol Stabilizing Brace |
| Rail Interface | M1913 Picatinny (rear receiver) |
| Color | Black |
| Maximum Width | 1.2" |
| Length | 9.6" |
| Strap Width | 1.0" |
| Weight | 13.0 oz |
| Material (Strut) | 6061 Aluminum |
| Hinge Material | Steel |
| What's Included | Complete assembly, adjustable nylon strap |
The FS1913 is designed for any rifle featuring an M1913 Picatinny interface at the rear of the receiver. This includes the SIG MPX, SIG MCX, SIG Rattler, and Rock River LAR-PDS, among other platforms with rear Picatinny rails.
Yes. The FS1913 ships as a complete assembly with the adjustable nylon strap already included. You simply attach it to your M1913 rail—no additional components or assembly required.
The brace features a pull-through design with an advanced steel hinge that locks securely in both folded and extended positions. Folding is simple and fast, and the hinge eliminates wobble when extended for shooting.
The FS1913 weighs 13.0 ounces, kept light by the use of 6061 aluminum for the strut while maintaining durability and rigidity through a steel hinge design.

SKU: 126512115 • Weight: 0.9oz





Availability: In Stock
Current Stock: Out of stock
The SB Tactical MPX PSB folding pistol brace with 1913 Picatinny adapter gives you a compact, shootable platform for PCCs and other modern sporting rifles that accept M1913 interfaces. Built on a steel hinge design that locks solid in both folded and extended positions, this brace folds low along the receiver for easy carry and quick deployment when you need it. Whether you're running a SIG MPX, MCX, Rattler, or any rifle with a rear Picatinny rail, this adapter transforms your setup into something genuinely more stable and controllable on the range or in the field.
The FS1913 uses a lightweight 6061 aluminum strut paired with an adjustable nylon strap, keeping total weight minimal while maintaining rigidity. Pull-through design means you can snap it into place in a heartbeat—no tools, no fumbling. It's designed and manufactured in the USA by SB Tactical, a company founded by veterans who understand what shooters actually need.
This is a complete assembly: everything ships together and ready to attach to any M1913-compatible receiver. The brace locks securely whether folded or extended, eliminating wobble and rattle during shooting. If you're building a modern rifle platform or upgrading an existing one, this is the kind of accessory that makes real-world difference in handling and control.
| Manufacturer | SB Tactical |
| Model | FS1913 Folding Picatinny Pistol Stabilizing Brace |
| Rail Interface | M1913 Picatinny (rear receiver) |
| Color | Black |
| Maximum Width | 1.2" |
| Length | 9.6" |
| Strap Width | 1.0" |
| Weight | 13.0 oz |
| Material (Strut) | 6061 Aluminum |
| Hinge Material | Steel |
| What's Included | Complete assembly, adjustable nylon strap |
The FS1913 is designed for any rifle featuring an M1913 Picatinny interface at the rear of the receiver. This includes the SIG MPX, SIG MCX, SIG Rattler, and Rock River LAR-PDS, among other platforms with rear Picatinny rails.
Yes. The FS1913 ships as a complete assembly with the adjustable nylon strap already included. You simply attach it to your M1913 rail—no additional components or assembly required.
The brace features a pull-through design with an advanced steel hinge that locks securely in both folded and extended positions. Folding is simple and fast, and the hinge eliminates wobble when extended for shooting.
The FS1913 weighs 13.0 ounces, kept light by the use of 6061 aluminum for the strut while maintaining durability and rigidity through a steel hinge design.
SKU: 126512115 • Weight: 0.9oz
