Product Description
Factory replacement hinge assembly for SIG MCX and MPX rifles with folding stocks. 1913 interface to attach to the back of the receiver. Includes screw to attached to stock stem.
When deployed, this assembly locks your stock open. Depressing the button allows it to be folded.
Can be used to attach any SIG style stock/brace (JMAC, PMM, etc) to any firearm with a 1913 Picatinny rail on the rear.
