The Arisaka Zero Retention Clamp (ZRC) is a revolutionary solution designed to eliminate zero shift for lasers and iron sights mounted on the handguards of the MCX Virtus and Spear LT. This clamp is engineered for the MCX Virtus chambered in 5.56 and 300BLK, as well as the Spear LT in 5.56, 7.62×39, and 300BLK. The ZRC utilizes exterior clamps that secure the handguard to the upper receiver across two axes, significantly reducing the risk of zero shift. Unlike conventional clamps, the U-bracket of the ZRC does not interfere with the barrel or gas system, ensuring optimal performance of your free-floated barrel. Its contoured design allows for a comfortable grip, ensuring minimal interference while shooting. Upgrade your setup with the Arisaka Zero Retention Clamp and maintain accuracy in every shot.