Update: 12/4/2024 – After a long wait, the Baby Barrett has received its updated parts. Now includes an extractor.
The Baby Barrett is an AR based, 22 caliber, 3/5 scale Barrett M82/M107 clone. Finally, you can afford to own and shoot a Barrett…some assembly required.
This kit includes all hardware required, regardless of the variant you chose to print. This means depending on which variant, you might have a few extra nuts and bolts. Most of this hardware is readily available and I link to it below. Please make sure you are using current files when assembling this build, as the files on Odysee have been updated multiple times. In the updated files, there is a modified bolt designed to accommodate the tungsten powder for bolt weight. Older versions of the files may not include this modified bolt. Additionally there are updates to the files for RS22 barrel, which now accommodate the non-threaded version as well
There are 5 barrel options for this build:
BYOB – $74.99 – No barrel included. This assumes you will be cutting and chambering your own barrel liner, or sourcing an RS22 barrel directly. Â Get one here!
15.5″ Liner $125 – A 15.5″ cut and chambered barrel liner will be included(you must permanently affix muzzle break to ensure this still meets rifle length)
18.75″ Liner $135 – An 18.75″ cut and chambered barrel liner will be included – Medium Length
21″ Liner $150 – A 21″ cut and chambered barrel liner will be included – Long Length
RS22 – $159.99 – Includes a NON-Threaded RS22 barrel.
A standard AR-15 Lower parts kit (specifically FCG, Springs, mag release, and safety)
All of the printed plastic pieces (no printed plastic is included in this kit)
Complete list of parts below: (In addition to selected barrel option) (for a list of whats not included, see above)
| Part Name | Count | Part Details |
| Bipod & Firing Pin Springs | 3 | 4×0.3x15mm spring |
| Bipod Bolts – Extension Lock | 4 | M3x4 |
| Bipod Bolts – Swivel Detents | 2 | M3 x 6 |
| Bipod Bolts – Spring Retention | 3 | M4x16 |
| Bolt Face | 1 | Laser Cut Part – 304 Stainless, 0.048″ |
| Bolt Reinforcement Ring | 1 | Laser Cut Part – 304 Stainless, 0.048″ |
| Bolt Weight | 2 | 4 oz Tungsten Powder |
| Buffer Spring | 1 | .36″x.298×11″ Spring |
| Charging Handle Bolt | 1 | M4x40 |
| Firing Pin & Nut | 1 | M3x55 Bolt, M3 Nut |
| Grip Bolt | 1 | M5 x 20 Bolt |
| Upper & Bipod > Feet”}”>Handguard > Upper & Bipod > Feet | 3 | M4x12 |
| Grip Screw Insert | 1 | M5 Heat Insert |
| Magazine Bolts – Top | 4 | M3x12 |
| Magazine Spring | 1 | 0.6mmx10mmx305mm Compression Spring |
| Recoil Pad Bolts | 2 | M4x20 |
| Receiver & Bipod > Handguard”}”>Stock > Receiver & Bipod > Handguard | 3 | M4x8 |
| BYOB/RS22 Parts | Not included unless you select BYOB or RS22 | |
| Muzzle Brake Bolts | 2 | 6-48 x 3/16 bolts |
| RS22 pins | 2 | 4x36MM stainless |
A few things you should know before buying this kit:
This is a hardware kit for a 3d printed gun. No plastic pieces are included, and no parts of this kit are regulated items.
Please be aware, I’m just a guy in my garage, not a full blown machine shop. Some fitting may still be required.
| Weight | 0.2 lbs |
|---|---|
| Dimensions | 4 × 4 × 2 in |
| Barrel | BYOB, 15.5" Liner, 18.75" Liner, 21" Liner, RS22 Barrel |
$74.99 – $149.99
The top source for 3D printable 22’s and Parts Kits. Bringing you all the best build guides, download links and information to help you complete your build.
Caleb –
Shipping was fast and the seller communicates quickly. Will definitely be back.
Justin (verified owner) –
If you want to build this project then buy this kit. I am very satisfied with how everything was labeled and the laser cut pieces for perfectly with little to no filing. I followed the instructions for the bolt and made it exactly 155g and I just shot my first two mags with suppressed 22 without a can and it cycled perfectly. Will be buying more kits from here very soon
Eric (verified owner) –
Great kit. Had everything I needed to build the BB