Vltor Weapon Systems CASV-M Handguard
The new CASV-M from Vltor Weapons Systems is the midlength version of the CASV-EL shown above. The CASV-M is designed to be used with a midlength gas system with any front sight/gas block, or with a carbine (or shorter) gas system with low profile gas block. Until now, midlength gas system users could use the CASV-EL, but the sight tower cutout would leave the midlength gas tube semi-exposed. The MG covers the gas tube completely on a midlength system.