Vltor received a lot of feedback from people that  the simplicity of the CASV, the fact that it is not covered with rails, and wanted to buy the CASV-ELS without the standard rail kit. So here it is: The time proven CASV-ELS Handguard and one 2" rail, for the discerning minimalist.

The Vltor CASV-ELSX is not an improved CASV-EL, but more like a variation for a user with special optic needs. Like all CASV systems, the CASV-ELSX relies on "piggy-back" mounting to the top of a “flat-top” M4 upper receiver. But what makes the CASV-ELSX different is its forward “Stepped” top rail portion. This forward rail allows the optic (such as most EOTechs) to be placed at the same plane/height as the weapon’s back-up iron sights, i.e. “co-witness”. Co-witnessing allows the end-user to sight-in the optic to the back-up iron sights or vice-versa. This means less time at the range, while sighting in the weapon.

Like the Vltor CASV-EL, this model is a “drop-on” rail system for a Carbine-Length gas system that is equipped with a fixed sight-tower/gas block system, as commonly found on most 10.5”, 14.5”, and some 16” barrels. The system also features a removable lower handguard, which allows the access of an M203 barrel-mounted grenade launcher. The smooth body construction allows multiple rail mounting points, adaptable to any mission needs. Each CASV kit features various lengths of removable rails and mounting hardware.