The M7 NGSW (Sig Spear MCX) is less reliable than the AR15 in mud.
Instruction from Karl Kasarda of InRangeTV details a mud reliability test on the Sig Spear MCX (M7 NGSW). The rifle initially functions with the dust cover closed but malfunctions when the dust cover is open, highlighting a key difference in reliability compared to AR-15 platforms in adverse conditions. The guide covers basic clearing steps for such malfunctions.












