A replacement handguard on the Benelli M4 improves where your forward hand sits on the gun and adds M-Lok slots for a hand stop, barricade stop, or other accessories. The M4 uses a piston-operated gas system rather than the inertia system of the M1, M2, and M3, and its forend geometry is its own design -- not compatible with the inertia-driven Benelli models. For M4 shooters, a handguard that gives a better forward grip surface and attachment options is a practical improvement.
Confirm M4-specific forend compatibility on the individual product page before ordering.
