It does appear to be a DD RIS II and the length would probably be about 12". I just got my 1:1 upper receiver not too long ago so I'm a fan of this kiti cant really see it properly, but on the NAVY SEAL HALO UDT JUMPER CAMO DRY SUITVER, is that a daniel defense ris II 12 inch LONG rail ????? anyone ???
--You can still get them as accessory sets (no head or body) for $99.99.