The SABR is a 3D printed Nerf SemiAutomatic Bullpup Rifle for full length darts.
- Simple design: only 8 printed parts for the blaster
- Tooless access to the battery compartment, flywheel cage and barrel
- Dual stage trigger
- 41.5mm flywheel gap for the integral flywheel cage
- Full length dart feed guide
- FTW solenoid pusher
- Full length picatinny top rail
- Optional side picatinny rails
- Integrated sling mounts
| Part | Quantity | Description |
|---|---|---|
| Flywheel motors | 2 | 130 or 180 sized motors for flywheels Purchase Link |
| Flywheels | 2 | Flywheels Purchase Link |
| FTW Solenoid | 1 | FTW Solenoid for the pusher |
| Microswitch | 2 | For activating the motors and solenoid Purchase Link |
| Silicone insulated wire | Wiring | |
| Heat set threaded inserts | 10 | To hold in screws (McMaster 94180A333 for 100) |
| Compression Spring | 1 | For trigger (McMaster 9657K56 for 12) |
| Torsion Spring | 1 | For magazine release (McMaster 9271K579 for 6) |
| M4x10 Socket head screw | 1 | For securing the solenoid |
| M3x10 Socket head screws | 7 | |
| M3x25 Socket head screws | 2 | Used for flywheel switch and trigger |
| M3x35 Socket head screw | 1 | For magazine release |
| M2 screws | 4 | For motors |
| 2 1/2" x 3/16" Pins | 3 | For securing the battery and stock (McMaster 98330A125 for 10) |
Prototypes were printed using these parameters:
- PLA
- .3mm layer height
- .4mm nozzle
- 1.2mm vertical wall thickness
- No supports
Assembly guide on the repository wiki
I sell the blaster and printed parts on Etsy.
The project was designed using Fusion 360, under their hobbyist license.
This project uses the FTW Solenoid by FlywheelTheWorld and the FTW Solenoid Pusher Head by FlywheelTheWorld