Upgrade your SIG MCX or MPX with the Thin Folding Stock 2.0 Assembly, 1913 Locking Hinge in black. Built for a secure fit on rifles with a 1913 stock interface, this factory-style hinge delivers dependable lockup when the stock is deployed and folds cleanly at the push of a button for a compact, transport-friendly setup. The streamlined design keeps the lightweight, skeletonized profile you want while adding a stronger steel hinge construction for improved durability and confidence in the field or on the range.

Designed to support better handling and faster transitions, this assembly helps your rifle stay compact without sacrificing stability. It also pairs with the MCX/MPX Thin Folding Stock 2.0 system and is ideal for replacing a worn hinge or completing a new build. The black finish complements your firearm's clean factory look, while the simple interface makes installation straightforward for compatible platforms.

Compatible with SIG MCX, SIG MCX-SPEAR LT, and SIG MPX models with a 1913 attachment point. Not compatible with the SIG SAUER CROSS.