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Flatter recoil
A progressive impulse instead of a spring's abrupt return — less muzzle rise.
For sixty years the AR buffer has worked one way: a steel spring compresses, stores energy, and slams it back. The Magnetic Buffer System throws out that assumption.
Stack two magnets north-to-north and they push apart with a force that rises steeply as they close. The MBS turns that curve into a recoil spring made of nothing but field lines.
Eight rare-earth magnets sit in a sealed buffer tube, oriented to repel. As the bolt carrier travels rearward it pushes into a wall of magnetism that strengthens through the stroke — then returns the carrier without the abrupt, ringing snap of coiled steel.
A physics-driven model of the stack: field lines traced from each pole, energy flowing along them, and the repulsion climbing as the gaps close. Grab the force–displacement arc and drag to push the bolt carrier through its stroke — the field, glow, and force readout respond to you.
A single spring applies one curve to every cartridge. Magnetic staging lets the system absorb carrier inertia in measured steps — tuned to the round you're shooting.
The carrier breaks rearward and meets the first, lightest field. Initial travel stays smooth — no harsh stack-up off the bat.
As the gap closes, repulsion climbs steeply. The field soaks up the bulk of the energy precisely where a spring would be slamming.
Stored magnetic energy releases on a controlled curve, chambering the next round with a flatter, quieter impulse and faster sight recovery.
A progressive impulse instead of a spring's abrupt return — less muzzle rise.
No metallic spring twang. Especially noticeable on suppressed builds.
No spring to take a set or fatigue, so the impulse stays the same over thousands of rounds.
Sealed and dry inside. Nothing to clean, oil, or replace.
Two systems cover the platform — carbine and large-frame. Both install like a standard mil-spec tube.
Do not disassemble. The sealed magnet stack is extremely powerful. Opening the system risks serious injury and voids the warranty.
| Models | MBS-C (carbine) · MBS-R10 (AR-10/DPMS) |
|---|---|
| Platform fit | Mil-spec & commercial buffer tubes |
| Calibers (MBS-C) | 5.56 / .223 · 9mm |
| Calibers (MBS-R10) | .308 / 7.62 · 6.5 Creedmoor |
| Also tested | .300 BLK · 12ga AR-pattern |
| Internals | 8× sealed neodymium magnets |
| Springs | None |
| Lubrication | None required |
| Activation | Pull release tab after install |
| Suppressor | Ready |
Frytech® and the Magnetic Buffer System (MBS / MSBC) are products of Frytech LLC. MBS technology is licensed to PAMAX Tactical. Cerakote® is a registered trademark of NIC Industries, Inc.; Frytech is an independent applicator.
You must be of legal age and meet all requirements to purchase firearm components in your jurisdiction. It is the buyer's sole responsibility to comply with all applicable federal, state, and local laws. Some items may not be legal in all areas — verify before ordering.
Safety — the MBS contains powerful sealed rare-earth magnets and is not user-serviceable. Keep clear of pacemakers, magnetic media, and children. Do not disassemble; doing so risks injury and voids the warranty. Specifications and pricing are subject to change without notice.