Modular Tokyo Marui MWS DMR Magazine Conversion KitConversion kit to turn your Black Variable Modular HPA Adapter for MWS into a DMR style magazine, very similar to 10 or 20 round magazines. Comes with baseplate, spring guide, follower, fill valve inlet valve, spring and follower so you can trim to your desired length and BB capacity. You can easily convert back to the HPA version as well! (rifle and other accessories not included). US PAT 10619968