Riot Balls

Combo 2 pc Tuning Barrel Kit + ProPower+50R/50P EXPORT VALVE T4E HDR50 TR50 Umarex

Regular price $ 89.00

This two piece barrel is machined from high quality aluminum, bore polished to a bore size of .505" or .495", and coated with Anodize matte black firearm finish for the perfect look to compliment your HDR50 TR50 with the best abrasion and mar resistance available, to assure your Riot Ball extended barrel looks as good as it performs. 


  • Extreme fit tolerances
  • increased precision
  • Diameter (inside) 12,7mm
  • Muffler thread
  • Anti-twist protection
  • attachment length 10cm
  • with additional thread protection cover 
  • Increase performance with further modification
  • very high durability
  • Plug and play


• Valve pin made of high-strength special aluminum 
• The valve pin is 1 mm shorter than original - so it can get the maximum out of your HDP 50 or HDR 50
• Performance increase over 20+ joules
• longer valve opening time thus greater gas volume
• reduced cool-down effect
• Easy to assemble.
• Approx. 15 shots possible then the capsule is empty a real steam hammer! 

Watch Installation Video 


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