Sig Sauer144597526
Sig Sauer 8901412 Mcx/Mpx Stock Black Aluminum Folding$275.00
Availability: In Stock
The Sig Sauer Collapsible Picatinny Stock Assembly is the factory-engineered telescoping stock built specifically for MCX and MPX platforms. If you run either of these Sig rifles and want a stock that matches factory specs and integrates seamlessly with your receiver's 1913 Picatinny interface, this is your straightforward solution. It installs directly onto the receiver's standard mounting point with no gunsmithing required.
What sets this stock apart is its three-position length-of-pull adjustment. Whether you're shooting in body armor, layered clothing, or need a shorter cheek weld for optics clearance, you can dial in the fit that works for your setup. The black finish matches the standard Sig color and holds up to regular field use. This is the real deal—the same stock Sig engineers designed for these rifles from the factory.
Built for shooters who want their rifle to adapt to their body and gear, not the other way around. If you're running an MCX or MPX for home defense, tactical training, or precision rifle work, a proper-fitting stock makes a real difference in control and follow-up shots.
| Brand | Sig Sauer |
| Type | Collapsible Stock Assembly |
| Mounting Interface | Picatinny (1913) |
| Length-of-Pull Positions | Three |
| Finish | Black |
| Compatibility | Sig Sauer MCX, Sig Sauer MPX |
Yes. This is the factory Sig Sauer collapsible stock designed specifically for MCX and MPX rifles. It mounts via the receiver's 1913 Picatinny interface.
Three positions. You can adjust the stock to fit your body, gear, and shooting style without removing it from the rifle.
No. It installs directly onto the receiver's standard 1913 Picatinny mounting point with no modifications needed.
The stock assembly itself. Installation onto your MCX or MPX receiver is straightforward and requires no additional parts.
SKU: 115679324 • Width: 10.6in • Height: 3.2in • Depth: 11.4in • Weight: 1.71oz
Availability: In Stock
The Sig Sauer Collapsible Picatinny Stock Assembly is the factory-engineered telescoping stock built specifically for MCX and MPX platforms. If you run either of these Sig rifles and want a stock that matches factory specs and integrates seamlessly with your receiver's 1913 Picatinny interface, this is your straightforward solution. It installs directly onto the receiver's standard mounting point with no gunsmithing required.
What sets this stock apart is its three-position length-of-pull adjustment. Whether you're shooting in body armor, layered clothing, or need a shorter cheek weld for optics clearance, you can dial in the fit that works for your setup. The black finish matches the standard Sig color and holds up to regular field use. This is the real deal—the same stock Sig engineers designed for these rifles from the factory.
Built for shooters who want their rifle to adapt to their body and gear, not the other way around. If you're running an MCX or MPX for home defense, tactical training, or precision rifle work, a proper-fitting stock makes a real difference in control and follow-up shots.
| Brand | Sig Sauer |
| Type | Collapsible Stock Assembly |
| Mounting Interface | Picatinny (1913) |
| Length-of-Pull Positions | Three |
| Finish | Black |
| Compatibility | Sig Sauer MCX, Sig Sauer MPX |
Yes. This is the factory Sig Sauer collapsible stock designed specifically for MCX and MPX rifles. It mounts via the receiver's 1913 Picatinny interface.
Three positions. You can adjust the stock to fit your body, gear, and shooting style without removing it from the rifle.
No. It installs directly onto the receiver's standard 1913 Picatinny mounting point with no modifications needed.
The stock assembly itself. Installation onto your MCX or MPX receiver is straightforward and requires no additional parts.
SKU: 115679324 • Width: 10.6in • Height: 3.2in • Depth: 11.4in • Weight: 1.71oz