• 4.2mm / .166 ID Micro diameter shafts coupled with the Defender insert system
• Provides increased penetration and unmatched durability for your arrow setup
• 4.2mm (ID) shaft has less wind drift in flight, resulting in improved accuracy compared to SD shafts
• Shafts Include Nexxus Defender Outserts in 50-grain Aluminum
• Interlocking 7075 Aluminium Pin & Sleeve combination for ultimate arrow protection
• Dual locking threads ensure precision alignment between your arrow, outsert, and broadhead for maximum accuracy and strength
• Accepts standard 8-32 thread pitch points or broadheads
• Spine specific sleeve fits the OD of the Infinity arrow shaft for precision fit
• Add more F.O.C. with 75-grain weight Nexxus Defender Titanium options sold separately

            Weight:

• 250 spine | 11.1 gpi | OD 6.41mm | ID 4.2 mm (.166")
• 300 spine | 10 gpi | OD 6.24 mm | ID 4.2 mm (.166")
• 350 spine | 8.87 gpi | OD 6.07 mm | ID 4.2 mm (.166")
• 400 spine | 8.05 gpi | OD 5.9 mm | ID 4.2 mm (.166") 
• 500 spine | I.D. 4.2 mm (.166")