The Sig Sauer Collapsible Stock for MCX and MPX (brand part number STOCKXCOLLAPSIBLEBLK) is a genuine factory replacement stock, built to the same standard as what ships on new MCX and MPX rifles from Sig. It combines a folding hinge with telescopic length-of-pull adjustment in one stock, so you can fold it down for storage or transport and still dial in length for different shooters or gear when it’s deployed. Installation is straightforward through the receiver’s 1913 interface, the same mounting standard Sig uses across the MCX and MPX platforms, and it’s finished in black to match factory furniture.

Key Specifications

• Fits the Sig MCX and MPX platforms.
• Features a folding hinge.
• Also telescopic for length-of-pull adjustment.
• Installs through the 1913 interface.
• A genuine Sig Sauer factory replacement part.
• Finished in black.

Frequently Asked Questions

Does this stock fold and adjust length? Yes, it’s both folding and telescopic.

How does it attach to the receiver? Through the standard 1913 interface used on MCX and MPX platforms.

Buy the Sig Sauer Collapsible Stock

Replace a damaged or missing stock with the same factory part Sig ships on new MCX and MPX rifles. Order this collapsible stock from Sig Sauer through our rifle stocks lineup, and our Lubbock, Texas team will get it shipped straight to your door.