Modify X-Range Hop-Up Bucking for VSR-10 Airsoft Rifles & GBB Airsoft Pistols

Features

• 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

Manufacturer: Modify

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. 
  
  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.

Specifications

Compatibility: Tokyo Marui, WE-Tech, KJW and other compatible GBB Pistols and VSR-10 rifles
Material: Silicone