MINI Performance Bolt Spring Kit

Each kit includes 3 different force springs, from hard to soft.  All springs have LESS force than your stock bolt spring, its a tuners delight. This kit is optimized for use with our Delrin V2 bolt for reduced input pressures, dwell, reduced firing signature, improved shot consistency, reduced bolt wear while reducing mass. Check the forums, this is what people are talking about..

  • each kit contains 3 springs, each with a different force 
  • color coded for easy identification
  • lowers your input pressure and dwell when used w/ V2 bolt
  • improved shot consistency
  • lower pressure is easier on paint

Spring Chart Below

  1. (RED = Hardest)
  2. (Yellow = Mid)
  3. (Blue = Weakest)

Notice- NDZ springs may not work properly with stock or some other aftermarket bolts.

MINI Bolt Kits

Offering performance upgrades for all users. We are currently offering this in 2 kit forms. Kits outlined below.

KIT #1 (bolt and springs)

  • includes our popular V2 bolt
  • includes our 3pcs performance spring kit
  •  free case

KIT #2 (bolt, springs and 3x oring kit)

  • includes our popular V2 bolt
  • includes our 3pcs performance spring kit
  • 3x build O-ring kit
  • free case

KIT #3 (3x bolt oring kit)

  • 3x build O-ring kit
  • free case

 

Notice- NDZ springs may not work properly with stock or some other aftermarket bolts.

MINI Back Cap

NDZ MINI replacement velocity back caps add some bling. With little aftermarket parts, one mini looks pretty much just like the other. Replace your stock damaged or worn cap with a fresh one.  

  • custom spinner design
  • take the old one out, new one in. Its that easy. 


 

*Available in Red, blue, black, and silver.

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