Nerf Rival Knockout XX-100 Upgrade Parts or Spring Mod

Take your Knockout blaster to the next level with these pro-grade upgrades – choose between reinforced metal internals or a high-power spring for unbeatable performance!

Why Upgrade Your Knockout?

💥 Harder Hits – 13kg spring boosts muzzle velocity by 30%+ for longer-range shots
🛡️ Unbreakable Reliability – CNC metal plunger head eliminates stock plastic failures
🎯 Tournament-Ready – Perfect for competitive Rival battles and HvZ matches
🔧 Easy Installation – Drop-in upgrades with no permanent mods required

Choose Your Upgrade:

Option 1: 13kg Power Spring

• Dramatically increases firing power

• Maintains smooth prime despite higher tension

• Best for: Players who want more range without internal modifications

Option 2: Metal Plunger Head

• Eliminates cracked/breaking stock parts

• Precision-machined for perfect air seal

• Best for: Heavy-use players who need maximum durability

(Note: For best results, pair both upgrades together!)

Specs & Compatibility:

✔ Blaster: Nerf Rival Knockout XX-100 ONLY
✔ Materials:

• Spring: High-tensile steel (13kg)

• Plunger Head: CNC aluminum or steel
  ✔ Includes:

• 1x 13kg spring OR

• 1x metal plunger head