Stocks

The MPX PSB is an innovative, 3-position adjustable Pistol Stabilizing Brace dimensioned to fit the receiver cuts of the SIG SAUER SIG MPX and SIG MCX. Ships as a complete assembly, ready-to-install, including an M1913 receiver saddle. Features:...

SIG SAUER factory replacement folding and telescoping stock installs easily on your MCX/MPX via the receivers 1913 interface. Stock is available in FDE.

SIG SAUER factory replacement folding and telescoping stock installs easily on your MCX/MPX via the receivers 1913 interface. Stock is available in black.

This assembly includes everything you need to add or replace your MPX or MCX stock with a folding buffer tube and the Magpul SL-K Stock.

A low-profile, left side-folding, strut design compatible with all platforms utilizing an M1913 interface at the rear of the receiver. The FS1913 is a complete assembly offering pull-through opening and a solid lock-up when extended. Features: Advanced...

SIG SAUER factory minimalist plus, folding stock installs easily on your MCX/MPX via the receiver's 1913/picatinny interface. Available in black.