The Army is pursuing a two-phase PIP to keep the M4 carbine inventory strong ... barrel chamber, magazine and bolt, as well as ergonomic changes to allow Soldiers to tailor the system to meet ...

The Army announced ... available, as well. Vortex XM157 fire control optic. Vortex The NGSW system is being introduced in order to replace the service's aging but iconic 5.56mm M4 carbines and ...