u/Cinderbolt77

Hi all. I found this halo rifle at a garage sale but it didn't have the magazines. Have tried finding but so far no luck.

Am hoping to find the magazine dimensions so I can print them. Or even better find replacements so I can use it.

Any info is much appreciated, so thanks in advance

Edit, was incorrect on the brand. Is not nerf, so looking like it may be a lost cause.