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Primary Weapons Systems
A suppressor piston is a critical wear component in any modular sound suppressor system, and the Primary Weapons Systems .578x28 piston is engineered to handle serious duty. This piston is the interchange point between your host firearm and your suppressor, so getting one that matches your threading and suppressor design matters—and the PWS .578x28 is built to handle repeated cycling and abuse. Machined from 17-4 stainless steel, it's built to last through thousands of rounds without premature wear or degradation, giving you a piston you can count on when it matters.
The real advantage of a quality piston is modularity. Rather than being locked into one suppressor or one host gun, you can swap this piston between compatible suppressors and platforms, letting you run your suppressor setup across multiple rifles or pistols without buying redundant cans. That flexibility is why shooters serious about suppressed fire keep quality pistons on hand.
The .578x28 thread pitch is a standard configuration for modern rimfire and pistol-caliber suppressors, making this piston compatible with popular platforms from PWS, Rugged, SilencerCo, Lone Wolf Arms, and Griffin, among others. If you're running a PWS BDE 9 or any of those other common suppressor lines, this piston drops right in. Black finish means it blends seamlessly with your suppressor tube and won't show wear as obviously as bare stainless.
Whether you're building out a modular suppressor ecosystem or just need a replacement piston for your existing can, the PWS .578x28 is a straightforward, no-nonsense part that does exactly what it's supposed to do.
| Thread Pitch | .578x28 |
| Material | 17-4 Stainless Steel |
| Finish | Black |
| Brand | Primary Weapons Systems |
The PWS .578x28 piston is compatible with PWS BDE 9, Rugged, SilencerCo, Lone Wolf Arms, and Griffin pistol suppressors that use the .578x28 thread pitch.
Yes. The modular design allows you to move this piston between compatible suppressor models, provided they share the same .578x28 thread pitch.
This piston uses a .578x28 thread pitch, which is a standard configuration for modern pistol and rimfire suppressors. The thread pitch must match your suppressor's design to ensure proper fitment and function.
Primary Weapons Systems
A suppressor piston is a critical wear component in any modular sound suppressor system, and the Primary Weapons Systems .578x28 piston is engineered to handle serious duty. This piston is the interchange point between your host firearm and your suppressor, so getting one that matches your threading and suppressor design matters—and the PWS .578x28 is built to handle repeated cycling and abuse. Machined from 17-4 stainless steel, it's built to last through thousands of rounds without premature wear or degradation, giving you a piston you can count on when it matters.
The real advantage of a quality piston is modularity. Rather than being locked into one suppressor or one host gun, you can swap this piston between compatible suppressors and platforms, letting you run your suppressor setup across multiple rifles or pistols without buying redundant cans. That flexibility is why shooters serious about suppressed fire keep quality pistons on hand.
The .578x28 thread pitch is a standard configuration for modern rimfire and pistol-caliber suppressors, making this piston compatible with popular platforms from PWS, Rugged, SilencerCo, Lone Wolf Arms, and Griffin, among others. If you're running a PWS BDE 9 or any of those other common suppressor lines, this piston drops right in. Black finish means it blends seamlessly with your suppressor tube and won't show wear as obviously as bare stainless.
Whether you're building out a modular suppressor ecosystem or just need a replacement piston for your existing can, the PWS .578x28 is a straightforward, no-nonsense part that does exactly what it's supposed to do.
| Thread Pitch | .578x28 |
| Material | 17-4 Stainless Steel |
| Finish | Black |
| Brand | Primary Weapons Systems |
The PWS .578x28 piston is compatible with PWS BDE 9, Rugged, SilencerCo, Lone Wolf Arms, and Griffin pistol suppressors that use the .578x28 thread pitch.
Yes. The modular design allows you to move this piston between compatible suppressor models, provided they share the same .578x28 thread pitch.
This piston uses a .578x28 thread pitch, which is a standard configuration for modern pistol and rimfire suppressors. The thread pitch must match your suppressor's design to ensure proper fitment and function.
