Jk Armament200188272
Jk Jk155Piston578X28Bn 155 Piston 578X28 45/10 Blk$99.75
Availability: In Stock
The JK Armament 155 Piston in .578"x28 is a precision-engineered component built for shooters who demand quality in their custom builds and suppressor systems. This stainless steel piston is designed for .45 caliber applications and comes in raw finish, ready to integrate into your pistol platform or suppressor tuning setup. Whether you're fine-tuning a piston-driven suppressor, working through a custom build, or chasing the exact blowback characteristics you need, this piston gives you the component-level control serious builders and gunsmiths rely on.
JK Armament pistons are known in the community for tight tolerances and reliable performance across a wide range of powder charges and bullet weights. The .578"x28 bore and thread configuration is a common standard in the suppressor and pistol platform world, making this a versatile choice for handloaders, builders, and those experimenting with optimal cycling on subsonic or standard loads. Raw stainless steel finish means you get an uncoated component—ideal if you plan to integrate it into a larger assembly, tumble-polish it, or simply prefer the material as-shipped.
This is a precision part, not a complete product—it requires installation expertise and understanding of how piston dynamics work in your specific firearm setup. Grab one (or several for load testing) if you're the type who builds to specification and values the freedom to dial in your own performance envelope.
| Brand | JK Armament |
| Product Type | Piston |
| Caliber | .45 / 45 ACP |
| Bore Diameter | .578" |
| Thread Pitch | x28 |
| Material | Stainless Steel |
| Finish | Raw |
The .578"x28 configuration is commonly used in .45 caliber pistol suppressor and piston-driven systems. Confirm compatibility with your specific firearm, suppressor, or build specification before purchase.
Pistons are tuning components—their function depends entirely on your powder charge, bullet weight, and overall load specification. Work with your load data and test carefully to ensure reliable cycling.
Raw finish means the stainless steel component ships uncoated. You can integrate it directly into an assembly, polish it, or apply your own finishing process as needed.
This is a precision component—a piston—not a complete suppressor or firearm. It's designed for builders, custom gunsmiths, and shooters integrating it into a larger assembly or testing platform.
SKU: 200188254
Availability: In Stock
The JK Armament 155 Piston in .578"x28 is a precision-engineered component built for shooters who demand quality in their custom builds and suppressor systems. This stainless steel piston is designed for .45 caliber applications and comes in raw finish, ready to integrate into your pistol platform or suppressor tuning setup. Whether you're fine-tuning a piston-driven suppressor, working through a custom build, or chasing the exact blowback characteristics you need, this piston gives you the component-level control serious builders and gunsmiths rely on.
JK Armament pistons are known in the community for tight tolerances and reliable performance across a wide range of powder charges and bullet weights. The .578"x28 bore and thread configuration is a common standard in the suppressor and pistol platform world, making this a versatile choice for handloaders, builders, and those experimenting with optimal cycling on subsonic or standard loads. Raw stainless steel finish means you get an uncoated component—ideal if you plan to integrate it into a larger assembly, tumble-polish it, or simply prefer the material as-shipped.
This is a precision part, not a complete product—it requires installation expertise and understanding of how piston dynamics work in your specific firearm setup. Grab one (or several for load testing) if you're the type who builds to specification and values the freedom to dial in your own performance envelope.
| Brand | JK Armament |
| Product Type | Piston |
| Caliber | .45 / 45 ACP |
| Bore Diameter | .578" |
| Thread Pitch | x28 |
| Material | Stainless Steel |
| Finish | Raw |
The .578"x28 configuration is commonly used in .45 caliber pistol suppressor and piston-driven systems. Confirm compatibility with your specific firearm, suppressor, or build specification before purchase.
Pistons are tuning components—their function depends entirely on your powder charge, bullet weight, and overall load specification. Work with your load data and test carefully to ensure reliable cycling.
Raw finish means the stainless steel component ships uncoated. You can integrate it directly into an assembly, polish it, or apply your own finishing process as needed.
This is a precision component—a piston—not a complete suppressor or firearm. It's designed for builders, custom gunsmiths, and shooters integrating it into a larger assembly or testing platform.
SKU: 200188254