This writeup has been a long time in coming, as the CASV-EL from Vltor Weapons Systems has been out a couple of years now. The original CASV was orignally offered by Abrams Airborne, and when Abrams acquired Vltor, Eric Kincel (general manager and head designer) re-designed the CASV specifically for the U.S. Navy. It was adopted by the U.S. Navy EOD (West Coast) in the tan version, and once that contrat was fulfilled, Vltor offered it to the public in 3 colours – tan (ELT), black (EL) and OD green (ELG).
The CASV-EL is made entirely of aluminum, with the exception of the mounting hardware, which is stainless steel. It’s basically designed for carbine-length gas systems like the M4 or M4 CQB 10.3″ barreled upper, and attaches to the top of the flat top receiver without alteration to the host weapon or gunsmithing needed. The barrel remains free-floated; the handguard does not touch any part of the barrel except at the barrel nut. The ‘EL’ refers to ‘ extended length – the CASV ‘extends’ the available rail space past the front sight tower. The CASV-EL weighs less than 16 oz.