electromagnetic · PulseCore
PulseCore
Prior-art disclosedPatentedMR-fluid damper plus a timed electromagnetic pulse to snap the bolt home.
- Platforms
- AR-15, Brujeria / Bruja
- Calibers
- 5.56 NATO
- Partner
- Frytech R&D
- Patent
- US 12,117,257 B1
How it works
MR fluid is oil with iron particles. A field makes it thick; no field and it flows. PulseCore uses that as a programmable damper.
A magnet on the push rod works with the fluid during the rearward stroke. At the rear of travel a coil pulse stiffens or releases on command.
A second pulse at the front of travel helps the bolt into battery — a magnetic rack instead of a slamming spring.
Shown on Brujeria concept platforms. Not a retail SKU.
MR yield stress rises with B-field. A short coil pulse can change damping in milliseconds. Combined with the patent’s moving-magnet coil, you get a sealed unit that both brakes and returns.
Spec
| Platform | Sealed module in a buffer envelope / Brujeria |
|---|---|
| Internals | MR fluid, magnet rod, pulse coil |
| Maintenance | Factory-sealed |
| Install | OEM concept integration |
| Compatibility | Patent family; prior-art disclosed |
Versus mil-spec spring
- Damping on command
- Return pulse into battery
- No conventional spring surge