The new Sig MPX collapsible brace
This guide details the installation of an SB Tactical collapsible brace onto a Sig Sauer MPX-P, a modification discussed by Tim from Military Arms Channel. The process involves securing the brace to the firearm's 1913 rail using a Torx screw. This modification is presented in the context of optimizing a 'get home bag' setup and navigating NFA regulations regarding pistol braces versus Short-Barreled Rifles (SBRs).











