Roundball stick magazine for HDR68 / TR68

This is a stick magazine that fits Umarex HDR68/TR68 paintball and training markers. It takes about 20 .68 caliber roundballs. Round projectiles only, no slugs. Easy to print and easy to assemble. --- **NOTES** - These kind of mags have an open projectile channel and some air escapes down there. Lightweight projectiles may work better than heavy ones. - The magazine has a tight curve inside and for this reason rubber balls should be avoided. They can be difficult to load. - The mag spring stren…

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