New Designz Invert Mini 3 Piece Bolt Spring Kit

New Designz Invert Mini 3 Piece Bolt Spring Kit NEW-DESIGNZ-INVERT-MINI-3-PIECE-BOLT-SPRING-KIT_1
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Your Price $19.95

A great design once again by a great company! The Invert MINI bolt spring kits. Each kit includes 3 different force springs, from hard to soft. All springs have LESS force than your stock MINI bolt spring, its a tuners delight. This kit is optimized for use with our Delrin V2 bolt and allows for reduced input pressures, reduced firing signature, improved shot consistency, and reduced bolt wear while reducing mass.


  • Contains 3 springs, each with a different force.
  • Color coded for easy identification - red - hardest, yellow - mid, blue - weakest
  • Lowers your input pressure and dwell when used with V2 bolt
  • Improved shot consistency
  • Low pressure is easier on paint

Spring Kit Chart

  • Red - Hardest
  • Yellow - Medium
  • Blue - Lightest

Warning-May not work properly with stock or some other aftermarket bolts. We highly recommend using this with the NDZ Tru Flo V2 Bolt

Customer Reviews

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