SIG SAUER MCX/MPX Folding Visor Stock w/ Locking Hinge – Black (8901412)

SIG SAUER builds this folding visor stock so you can actually get a cheek weld with a helmet or a mask on. Aluminum, black, fixed length, it folds, and the hinge locks the stock open in the deployed position. It mounts to the receiver on an M1913 interface and has QD sling swivel slots. SIG lists weight at 15 oz (approximately 15 ounces). SIG SAUER SKU 8901412, UPC 798681677634.

This listing is for the black folding visor stock with locking hinge only.

Visor Cut, Helmet and Mask Clearance

SIG's line on this stock is short and specific: "This stock allows for clearance when using a helmet or a mask." That visor profile is the reason this furniture exists.

Locking Hinge and 1913 Mount

SIG says the folding visor stock installs on MCX/MPX via the 1913 receiver interface. The hinge locks the stock open in the deployed position. SIG's spec table: folding yes, locking yes, adjustable positions fixed length, attachment type M1913, sling attachment quick disconnect (QD) swivel slots, material aluminum, color black.

SIG lists fitment as SIG MCX, SIG MCX-SPEAR, SIG MCX-SPEAR LT, and SIG MPX.

SIG SAUER MCX/MPX Folding Visor Stock Specifications

Frequently Asked Questions

What does SIG say it fits?
SIG MCX, SIG MCX-SPEAR, SIG MCX-SPEAR LT, and SIG MPX.

How does it mount?
SIG: the 1913 / M1913 receiver interface.

Does the hinge lock open?
Yes. SIG states the hinge can lock the stock open in the deployed position.

Is the length adjustable?
SIG lists adjustable positions as fixed length.

How much does it weigh?
SIG lists 15 oz (0.94 lb) — approximately 15 ounces.