Overview
The Decimator 22 is a hybrid firearm that combines elements of the Ruger 10/22 and AR-15 platforms, resulting in a highly customizable design. This modular firearm allows for flexibility in assembly, offering DIY and OEM-compatible options for various components. Whether youโre building for precision or just for fun, the Decimator 22 brings an exciting challenge to the table for enthusiasts.
Key highlights include its compatibility with 10/22 bolts, magazines, and AR-15 fire control groups, alongside DIY barrel and handguard variants. Itโs tailored for makers who want full control over their build.
In the Wild
Images
Videos
THE DECIMATOR IS LIVE!!!https://t.co/ereThTOG9t pic.twitter.com/YLSobI5POa
— Prints.and.the.Revolution (@PrintsandtheRev) November 12, 2024
I prefer the Decimator-22.
— Decimal (@Destronomic) November 19, 2024
An Ar-10/22 hybrid combining the best of both worlds. Can be built for less than $150! pic.twitter.com/WuN6WA5GIl
Features of the Decimator 22
The Decimator 22 is built with versatility and ease of assembly in mind. It features an AR-15 Fire Control Group paired with a Ruger 10/22 bolt and charging handle, ensuring a smooth operational synergy. Its paddle magazine release offers an ergonomic advantage while keeping magazine swaps straightforward.
It supports both DIY barrels with liners and OEM Ruger 10/22 barrels, giving users the choice of manufacturing their own parts or integrating existing ones. Its pistol and rifle-length configurations enable adaptability for different use cases.
The Decimator 22’s Picatinny rail system supports a range of stock and brace attachments, while its modular design includes multiple handguard styles, from simple single-rail setups to advanced hex tube variants. Customization is further enhanced with downloadable extras like pistol grips, stocks, muzzle devices, and more.
For ease of printing, parts come pre-oriented, and robust construction is ensured with high-infill settings for printed components.
Hardware and Tools Required
Hardware
- Ruger 10/22 Components:
- Bolt assembly
- OEM charging handle
- Magazine plunger and spring
- Ejector (optional based on lower variant)
- AR-15 Components:
- Fire Control Group (trigger, hammer, springs, safety, etc.)
- Rear locking pin or 1/4″ clevis pin
- Quick-detach pin (1.5″ and 2″ lengths)
Additional Parts
- M3 Hex Socket Head Screws: Various lengths from 6mm to 50mm
- Barrel liner (Chaszel or equivalent) or OEM barrel
- JB Weld (plastic bonder)
- 2 spools of high-quality filament (PLA+ or better)
3D Printed Parts for the Decimator 22
- Upper receiver
- Lower receivers (full or split variants)
- Barrel sleeves and adapters
- Handguards (available in multiple designs and lengths)
- Barrel nut and nut tool
- PUG pins
- Takedown pins
- Hammer sanding jig
- Printable ejector (if required)
Tools Required
- Drill with an imperial bit set (5/64″ to 3/8″)
- Dremel with sanding attachments
- 80-220 grit sandpaper
- Metal file set
- Cotton swabs/Q-tips
- Nylon hammer (for roll pins)
- Heat-resistant gloves and mask (for JB Weld application)
Decimator 22 Instructions
Conclusion
The Decimator 22 merges the best of the Ruger 10/22 and AR-15 platforms into a versatile, user-friendly firearm for 3D printing enthusiasts. Whether you opt for full DIY or integrate OEM parts, the result is a fully customizable firearm tailored to your preferences. With a variety of configurations and a comprehensive assembly guide, this project is both accessible and rewarding for builders of all skill levels. Get printing and enjoy the journey!
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