Skip to content

Rocket for UMAREX HDS 68

Creation quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.

3D model description

This defensive rifle uses a Co2 sparclette and can fire 2 .68 caliber rubber bullets (or Paintball) with an impressive 16 Joules of power!

I have created a new rocket-style projectile to replace the rubber bullet, and this in 4 models:

  • pointy-headed

  • flatheaded

  • hollow-headed

  • split head

This creation is composed of 3 elements:

  • a base 18.40 mm in diameter and 8 mm in height, which will hold the rocket in the barrel

  • a lid that is placed in the base (an attached STL file will allow you to print 20 copies in one go)

  • the rocket of 17.10 mm in diameter and ~254 mm in height


Place a cover at the bottom of the base.

Insert the fins of the rocket fully into the base: the assembly must be tight enough not to separate easily.

When firing, the rocket and the cover will be expelled, but the pellet will remain in the weapon and can be recovered for another shot (by adding a new cover).


WARNING: The use of this projectile represents a much greater danger of injury than the original rubber ball!

                   Here in France, if a possible aggressor is injured, you risk criminal prosecution!

                   Its use must therefore be purely recreational, just like the game of darts in bars!

My other creations for UMAREX HDS 68 :

  • Reusable cartridge :

  • Shoe cartridge for a diabolo .177 :

  • Balls:

  • Paper Cartridges :

To see all my other creations on this site, enter "oasisk" in the search window of this site

3D printing settings

layer: 0.20

IMPORTANT! A Raft is absolutely essential for the rocket because the printing starts with the fins and therefore with a very small area on the tray!

For the base and the 20xopercules, just a skirt to start the extrusion process.

filling: 100% for all

3D printer file information

  • 3D design format: STL Folder details Close
    • 20xOpercule.stl
    • Culot.stl
    • Roquette68 a pointe.stl
    • Roquette68 creuse.stl
    • Roquette68 fragmentee.stl
    • Roquette68.stl

    Learn more about the formats

  • Last update: 2021-02-28 at 14:21
  • Publication date: 2021-02-21 at 17:47





Designs 879
Downloads 75.7k
Sales US$464.34
Followers 657
Page translated by automatic translation. See the original version.
Issue with this design? Report a problem

Best sellers of the category Various

Add a comment

Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your AdBlock banner blocker and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon or Aliexpress.

  • DONATE: If you want, you can make a donation via PayPal here.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!