The Army is testing a new configuration of the M7/MCX SPEAR in response to feedback that the gun is too heavy.
>Barrel is shortened to 10.5 inches
>Stock is now fixed telescoping instead of folding
>Lighter BCG/Upper/Barrel
>Shorter SLX Suppressor with heat shield to mitigate glow when it gets hot
>3.4kg/7.5lb empty weight
Supposedly still hits 3000+ fps even with the 10.5 inch barrel