My dual 130+ FPS Hera pistols with a hinged rear battery door held in place with 2 sets of magnets on the bottom of the door. I also used a flush mounted
Nerf Rival Charger Review | Blaster Hub
Just got a Hera and I really like the trigger action. I have the rival battery pack in. Why isn't this more popular? I know perses etc. But still. It just runs
Amazon.com: Nerf Rival Phantom Corps Hera MXVII-1200 : Toys & Games
NERF Rival Hera MXVII-1200 - Blaster-Time
My easy to make hera pistol. NO POWER TOOLS NECESSARY : r/Nerf
Nerf Rival Hera Firing Range Test with Nerf Rival Rechargeable Battery Pack (New Nerf Guns 2017 ) - YouTube
NERF B8996 Rival Rechargeable Battery Pack for sale online | eBay
Review] NERF RIVAL Phantom Corps HERA, Face Mask and Rechargeable Battery Pack - YouTube