The CASV-EL relies on "piggy-back" mounting to the top of a flat top M4 upper receiver. This system 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 all mission needs. Each CASV kit features various lengths of removable Picatinny rails and mounting hardware.

The CASV-EL is intended to be a drop in rail system for a carbine length gas system that is equipped with a fixed front sight tower/gas block system, as commonly found on most 10.5", 14.5", and some 16" barrels.
The CASV-EL relies on the use of the delta ring for a more secure mounting point. Vltor does not recommend that any CASV handguard be used without the standard delta ring assembly.

This CASV chassis is made entirely of aluminum, with the exception of the stainless steel mounting hardware. After mounted, the CASV-EL adds less than 1lb (13.5 oz without mounted rail sections) to the firearm's overall weight and features a QD sling swivel socket on the left and right sides.

Installation note: the installation of this handguard does not require any modifications to the firearm except for the removal of the standard front sling swivel (if your carbine is equipped with one).

Kit contains the following Items:
Qty.1 - 6" Accessory Rail
Qty.2 - 4" Accessory Rail
Qty.2 - 2" Accessory Rail
Qty.13 - 10-32 x 1/2 flathead hex drive screws
Qty.2 - Hex wrenches for mounting clamp and accessory rail installation