Zius BK1S/BK2S Magazine

The Zius BK1S/BK2S Magazine is the proprietary mag built specifically for the BK1S and BK2S platform, holding 12 rounds straight out of the box. Want more capacity? Pull the internal limiter and the same magazine will feed 13 to 14 darts, though it's worth switching to a stiffer foam dart once you do.

Beyond capacity, the magazine is designed to be serviced rather than replaced: it disassembles easily so you can pull the follower out for cleaning, and the mag base itself is removable. That opens the door to fitting custom mag base extension attachments if you're chasing more rounds or a different grip length. A solid pickup as a spare or backup magazine for anyone running a BK1S or BK2S regularly.