The Valken V12 ULTRA SBR HPA is now back in stock at the Valken Airsoft store or at authorised dealers and resellers... "The V-12 ULTRA SBR (Short Barrel Rifle) is the ideal system for Close Quarter Battle (CQB) The V-12 ULTRA Series is the ultimate in durability and versatility, with it's reinforced Aluminum Alloy Body and rock solid buffer tube mounting system that was designed with the hardcore player in mind.