Very close to the August 8 date I found earlier. But this press release sent in my Nerf shows that most locations should be getting them in by August.
NERF VORTEX PYRAGON Blaster
(HASBRO/Ages 8 years & up/Approx. Retail Price: $39.99/Available: August 2012)
The VORTEX PYRAGON blaster is the first-ever drum fed VORTEX blaster, holding an unprecedented 40 discs making it the highest capacity of any VORTEX blaster before it! Fire discs one at a time or hold the trigger down and use the pull-back mechanism to send a steady stream in Slam-Fire mode. Fans can also attach a variety of VORTEX or N-STRIKE Mission Kit accessories (each sold separately) onto the blaster’s Tactical Rail System. Includes 40 XLR discs. Available at most major toy retailers nationwide and HasbroToyShop.com.