Sig Sauer factory replacement collapsible stock assembly installs easily on your MCX, MPX or other platforms with a receiver mounted 1913 rail interface. This stock assembly gives you the ability to install standard AR-15/M4 type buttstocks on your MCX/MPX via the mil-spec diameter extension tube. Includes a Sig adjustable buttsotck.
Features :
- Black finish
- Side folding stock for MCX/MPX
- Accepts all standard /AR style stocks