Airsoft Atlanta announce that they have the Version 2 of the PDI Hop-Up Chamber for the Marui VSR-10 in stock... "The PDI VSR-10 Hopup Chamber, newer 2.0 version. Probably the best hop-up chamber for the VSR gun in existence! A very cool accessory for those wanting the most from their airsoft sniper rifle. This is an advanced adjustable hopup unit - not for amateur players. Made in Japan by PDI. Will not work with all original VSR parts, a full list of requirements is listed below. You have to use an AEG style barrel and AEG hop up bucking in this chamber. Killer hopup by PDI!

Features:

• For Tokyo Marui based VSR-10 Airsoft Sniper Rifles
  • Requires: PDI Precision or Raven Cylinder Head (not included)
  • Requires AEG hop up bucking (not VSR style - the PDI W Hold AEG bucking works well)
  • Requires: AEG style (shaped) inner barrel, not original VSR-10 style barrel (303, 430, or 554mm AEG barrels only)
• Will not work with Bore Up upgrade parts
• High quality, made in Japan"