Engineered to fit the SIG MPX"" Lancer's OEM 8"" carbon fiber replacement handguard is a direct replacement offering substantial weight savings. The carbon fiber tube is quickly installed or removed for cleaning using the OEM take down pin. They utilize the best material for the specific application"" resulting in hybrid designs that are lighter than conventional designs. There is approximately a 50% weight reduction vs the OEM aluminum handguard. With the M-LOK attachment system there is greater compatibility with aftermarket accessories.