Mega RotoFury Blaster Upgrade Spring

Supercharge your Mega RotoFury with this high-tension piano steel spring that delivers brutal power and elite-range accuracy for Mega darts! Choose between 10kg (pro) or 12kg (competition) tension to dominate large-scale battles.

Why Upgrade?

🔥 Massive FPS Boost – Up to 90+ FPS with Mega darts (40%+ over stock)
🎯 Tighter Shot Groupings – Precision-wound coils for better accuracy
⚡ Piano Steel Durability – Withstands thousands of shots without fatigue
🔧 Easy Drop-In Installation – No shell cutting required

Choose Your Power Level:

✔ 10kg (Pro Performance) – Balanced power & prime weight
✔ 12kg (Competition Elite) – Max velocity for serious players

What’s Included?

• 1x Mega RotoFury Upgrade Spring (10kg or 12kg)

Tech Specs:

• Material: Aircraft-grade piano steel

• FPS Gain: 80-90+ FPS with Mega darts

• Compatibility: Nerf Mega RotoFury ONLY