Amazon.com: Nerf Rival 40-Round Refill Pack and 40-Round Magazine : Toys & Games
Nerf Vortex 40 Round Ammo Drum Magazine with Discs | eBay
Nerf Rival Khaos Blaster MXVI-4000 40 Round Magazine Clip for Parts Missing Bar | eBay
40 round half length drum mag by Sim Lim : r/Nerf
Amazon.com: WORKER 10-Round Talon Magazine Short Darts Mag, Half-Length Drat Clip for Nerf and Adventure Force Nexus Pro, Swift Blaster Magazine : Toys & Games