Sig Sauer MCX/MPX Folding Telescoping Stock Polymer (Black) HK417 The corners of the gearbox

The corners of the gearbox that surround the cylinder feature a smooth radius

that answer the questions and needs of line war-fighters

Fast rotation twice starts strobe function

the VFC BCM MCMR 11

but with the strength in construction and materials to load down with extra heavier gear if needed

Sig Sauer MCX/MPX Folding Telescoping Stock Polymer (Black) HK417 The corners of the gearboxThis is a factory replacement stock for the SIG Sauer MCX MPX. It both folds and telescopes. The stock attaches easily to the firearm receiver via the receiver's 1913 interface. It is made of reinforced polymer material and has sockets for push button QD sling swivels. Reinforced polymer construction Side folds Telescopes Attaches to receiver via 1913 interface Black