Sig Sauer 8901412 Mcx/Mpx Stock Black Aluminum Folding

The Sig Sauer MCX/MPX folding stock in black aluminum is a factory-original replacement or upgrade for shooters running either of Sig's popular modern rifle platforms. If you're building or maintaining an MCX or MPX and need a stock that collapses for transport, storage, or tight shooting positions, this is the OEM piece engineered by Sig to fit your platform. The aluminum construction keeps weight down while the folding design shrinks your gun's footprint when closed—valuable whether you're stowing a rifle in a vehicle, moving through tight spaces on the job, or simply prefer a compact setup at the range.

Sig's MCX and MPX lines have earned solid reputations for reliability and modularity in both civilian sport and professional use. This folding stock preserves that quality standard and gives you the flexibility to switch stance or storage mode without tools or parts swaps. Black aluminum is durable, corrosion-resistant, and matches standard tactical finishes across your rig.

Whether you're a competition shooter, law enforcement user, or someone who values a compact platform for hunting or home defense, having the correct OEM stock ensures proper fit, function, and resale value. Sig's tight tolerances mean you get consistent feel and predictable handling every time you shoulder the rifle.

Key Features

• Folding design for compact storage and transport
• Black aluminum construction—lightweight and durable
• Factory Sig Sauer OEM part for MCX and MPX platforms
• Engineered fit and reliable function

Specifications

Frequently Asked Questions

What rifles does this Sig stock fit?

This stock is designed for Sig Sauer MCX and MPX rifles. Always verify your platform before purchasing to ensure compatibility.

Can I use this stock on other rifle platforms?

No, this is a platform-specific OEM stock made for MCX and MPX receivers. Using it on other rifles will not result in proper fit or function.

Does the stock fold to the side or collapse lengthwise?

The facts provided do not specify the direction or mechanism of the fold. Contact us directly if you need clarification on how this stock collapses before purchase.

Is this stock new or surplus?

The facts provided do not specify condition or origin. Please check the product listing details or contact our team for current availability and condition information.