Upgraded 500-Round Balls Refill Pack Compatible with Nerf Rival Apollo, Zeus, At | eBay
Nerf Rival Rechargeable Battery Pack
5 Reasons Why YOU Should Buy the Nerf Rival Battery Pack - YouTube
Amazon.com: NERF Rival Rechargeable Battery Pack : Toys & Games
NERF B8996 Rival Rechargeable Battery Pack for sale online | eBay
Amazon.com: NERF Rival Rechargeable Battery Pack : Toys & Games
Looks like Nerf made a change to their rechargeable battery pack to reduce/eradicate cross compatibility with other brands. Currently doesn't fit in my Quantum, I assume I can simply cut the nub