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Modify X-Range Hop Up Bucking (70 Degree)

by Modify
SKU GB-05-74


  • Special airtight design
  • 2 stage channel design provides excellent BB positioning and accuracy
  • Superior tear resistance
  • Excellent temperature resistance
  • High abrasion resistance
  • Improves accuracy and range
  • Super durable silicone construction
Compatibility: Tokyo Marui, WE-Tech, KJW and other compatible GBB Pistols and VSR-10 rifles

Bucking Hardness vs FPS Optimization chart
  • 50 Degree: 250~350 FPS / 0.20g bb
  • 60 Degree: 250~420 FPS / 0.20~0.25g bb
  • 70 Degree: 380~490 FPS / 0.23~0.30g bb
  • 80 Degree: 480~630 FPS / 0.25~0.40g bb

    *This chart is intended for reference only. Every rifle is unique and result may vary. Please use Matrix, and compatible high grade bbs for best results.

    Installation Instructions: During installation, it is a good idea to apply some light silicon oil on the bucking. Keeping the bucking lubricated will prolong the longevity of the bucking and o-rings involved in any Airsoft equipment.