Nerf N-Series Gear Up Pack Upgrade Spring Parts

Unlock maximum firepower for your Nerf N-Series Gear Up Pack blasters with our professional-grade 11.5kg performance spring kit. This complete upgrade solution delivers harder hits, longer range, and tournament-level performance - everything you need to outgun the competition.

Ultimate Performance Package

🎯 Precision Engineered Components

• 11.5kg piano steel spring (40% stronger than stock)

• High-grade plunger O-ring for perfect air seal

• Reinforced aluminum plate prevents spring fatigue

⚡ Measurable Improvements

• +50% firing range for superior battlefield control

• 25% velocity increase for faster target acquisition

• Smoother prime action for rapid follow-up shots

🔧 Complete Upgrade Solution

• Everything included for one-step installation

• Maintains perfect blaster balance

• Works with all 3 Gear Up Pack blasters

What's in the Box?

✔ 1x 11.5kg Piano Steel Spring
✔ 1x Premium Plunger O-Ring
✔ 1x Reinforced Aluminum Plate

Pro Tip: Combine with upgraded darts for maximum accuracy!