HC Diana magazine cap and extension

Replacement magazine cap for the HC Diana nerf blaster.  Suggest light filing of the screw hole prior to installation, although it is not necessary.  Just makes screwing it on easier.

In the photo, the part has a wavy pattern because I printed 1 wall, 10% gyroid infill. That's all that is needed for strength.  If you don't want the wavy pattern, print 2 walls or use a different infill.  But any infill pattern will show through with 1 wall.

Added a 2" longer version of the mag cap to make it an extension.

Feel free to remix to make it fancier and/or improve the follower fit on the extension, as I did this in Tinkercad.  I suspect the bottom of the extension could be made a little tighter to provide more support to the follower when it goes beyond the stock mag body.  I left it a little wide as I've previously had issues with talon mag extension being too tight and stopping the follower.