These clamps allow you to bolt two magazine together for quicker/convenient re-loads. Since the clamps bolt together you can also easily adjust, remove or re-install the clamps.
I specifically designed these clamps for Worker 22 round nerf magazines. Other magazine designs will also work but the fit may not be ideal.
Each clamp requires two M5x45mm socket head bolts and two M5 nuts.
Gluing some small squares of foam padding should help prevent the magazines from slipping in the clamps. I glued my foam onto the T shaped 3D printed pieces where they touch the thin sides of the magazines.