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ARK 2.0

ark 2 invader zip

ARK 2.0 STL Files

“Mostly 3D printed” tri-material design rated for most rifle calibers

ARK 2.0 Details

Invader Zip is a 3D gun developer who created Ark 2.0 project, which is a project that aims to help the 3D2A community to be more innovative in the higher caliber arena.

They did this by using a tri-material design to create a 3D printed firearm that can reliably fire rifle calibers utilizing mostly AR15 internals.

The firearm is mostly 3D printed, meaning that it was made using a consumer grade printer using common filaments (i.e. PLA+, Nylon, etc).

The hope is that this project will help to create more possibilities and innovation for the 3D printed gun community.

ARK 2.0 in the Wild



ARK 2.0 Tech Specs

The ARK 2.0 is quite modular and customizable when it comes to a users overall design, chambered caliber, and amount of DIY they want to bite off.

The ARK has been successfully beta tested using .223Win, 5.56x45NATO, 300BO, 7.62x39mm, 350Legend.

This makes this gun a step up in stopping power and innovation from the 9mm FGC-9 MK2.

The ARK 2.0 is one of the rare designs that fits into the “mostly 3D printed” category of gun CAD designs. This allows for more widespread access and ability to build this gun.

Shop Husky Armory

This design utilizes a mix of 3D printed, standard AR15, and/or prefabricated metal parts (available from or ghost gun parts kit vendors).

Required Parts for the ARK 2.0


  • Filament
  • 3D Printer
  • AR15 Barrel
  • AR15 Bolt Carrier Group
  • AR15 Lower Parts Kit
  • AR15 Buffer Weight/Spring
  • AR15 Gas Block/Gas Tube
  • AR15 0.004″ Barrel Nut Shim
  • Charging Handle
  • Enhanced Cam Pin
  • ARK2.0 Hardware Kit


  • PTFE Tubing
  • 1/4-20 Binding Barrel (4 pieces)
  • 1/4-20 Square Nut (2 pieces)
  • M5x20mm Bolt (2 Pieces)
  • M3x20mm Socket Head Bolt (2 Pieces)
  • 1/4-20 All-Thread SEE GUIDE ABOVE GENERIC
  • M5 Heatset Insert (2 pieces)
  • 1/4-20 Hex Nut (2 Pieces)
  • Mild Steel Plates


  • Hand drill
  • Allen key set
  • Screw drivers
  • Armorer hammer
  • Basic punch set

Suggested 3D Printed ARK 2.0 Settings

Invader Zip recommends the following slicer settings for the best ARK 2.0 print:

Nozzle Size: 0.4mm

Layer Height: 0.2mm

Walls: 999

Infill Density: 100%

Supports: Tree

Build Plate Adhesion: Brim or Raft


  • PLA+ (eSun, Polymaker Pro or stronger)
  • CF Nylon

This project is great and surprisingly does not require following 100+ steps.

The ARK 2.0’s guide is very clear, concise, and accessible to 3D gun builders at all levels. Give it a go and print your ARK today!

DISCLAIMER: 3D STL files are for learning and documentation purposes only. The users of this website and files need to be aware of all applicable local, state, federal and regional laws. 3D Gun Builder does not encourage, condone, or promote any illegal activity.

3D Gun Builder ( does not host, provide, develop, and/or have any affiliation with the firearm STL files or All files are hosted by a third party.

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