The SIG Sauer MCX/MPX Pistol Brace in Coyote Tan (SIG Sauer part no. 8901673) is the factory folding, locking brace for the SIG MPX and the MCX family. It installs through the receiver’s M1913 interface and comes with a forearm strap for one-handed shooting stability. A locking hinge secures the brace against the pistol when folded and locks it when it is folded out, so it does not swing. The brace is a fixed length and does not telescope. This SIG Sauer PCB kit is built for the pistols it is named for, with a weight of 10.9 ounces.

Key Specifications

• The brace fits the SIG MCX, MCX-SPEAR, MCX-SPEAR LT and MPX, the platforms SIG Sauer lists for it.
• The brace folds, which shortens the package for storage and transport.
• A locking hinge holds it folded against the pistol and locked when folded out, preventing swinging movement.
• The brace is fixed length and not telescoping, so it has a single position.
• It mounts through the receiver’s M1913 attachment, so no extra adapter is needed on the listed pistols.
• The weight is 10.9 ounces, light enough to avoid upsetting the balance of the pistol.
• A forearm strap comes with the brace, securing the brace to the shooter’s forearm.

Frequently Asked Questions

Which pistols does this brace fit? SIG Sauer lists it for the SIG MCX, MCX-SPEAR, MCX-SPEAR LT and MPX.

Does the brace telescope? No. It is fixed length, and it folds and locks instead.

Does it come with a strap? Yes. SIG Sauer includes a forearm strap with the PCB kit.

Buy the SIG Sauer MCX/MPX Pistol Brace, Folding, Locking, Coyote Tan

Match an MPX or MCX in Coyote Tan with this factory brace, and see more AR braces and stocks. It ships fast from our Lubbock, Texas gun shop.