SilencerCo144597671
Silencerco Ac5335 9Mm 1/2"X28 416R S/S Black$143.65
Availability: In Stock
The SilencerCo AC1346 piston in .578x28 XL is a precision-engineered component built for shooters running SilencerCo suppressor systems on semi-automatic pistols. This stainless steel piston is part of the Nielsen device that enables your host pistol's slide to cycle properly while your suppressor is mounted. If you're switching between different firearms or calibers under the same suppressor platform, SilencerCo pistons let you swap quickly without buying new cans—a practical advantage for the serious shooter with multiple hosts.
Built from 17-4 stainless steel and heat-treated for durability, this piston features female threading that mates directly to SilencerCo's threaded barrels. The .578x28 XL specification matches a range of SilencerCo cans, and the stainless construction resists corrosion even in suppressed shooting environments. For fixed-barrel applications, you can pair this piston with a Fixed Barrel Spacer to adapt your suppressor setup.
This is the kind of component that separates a locked-in suppressor rig from a flexible one. Whether you're working with an Omega, Omega 36M, Octane, or Osprey series can on a Charlie Piston Mount, having the right piston on hand means you're ready to adapt without downtime. Reliable, durable, and built to SilencerCo's standard—this piston is essential hardware for any suppressed semi-auto pistol platform.
| Material | 17-4 Stainless Steel, heat-treated |
| Thread Specification | .578x28 XL |
| Piston Type | SilencerCo Nielsen Device Piston |
| Mounting Interface | Female threading to SilencerCo barrels |
The AC1346 piston is compatible with SilencerCo Omega, Omega 36M, Omega K Series, Hybrid 46, Hybrid 46M, Osprey Series, and Octane Series cans—specifically those equipped with a Charlie Piston Mount. Always verify your specific suppressor model before ordering.
Yes. Pair this piston with a Fixed Barrel Spacer to adapt it for fixed-barrel mounting. Without the spacer, it's designed for semi-automatic cycling on moving-barrel pistols.
The piston itself is host-agnostic—it attaches to SilencerCo threaded barrels. As long as your pistols have compatible barrels with .578x28 XL threading, you can use the same piston across different firearms, making it a cost-effective option for multi-host suppressor systems.
17-4 stainless steel and heat treatment provide strong corrosion resistance, which is important in suppressed shooting where moisture exposure is common. Standard maintenance and storage practices will keep it performing reliably.
SKU: 167515657
Availability: In Stock
The SilencerCo AC1346 piston in .578x28 XL is a precision-engineered component built for shooters running SilencerCo suppressor systems on semi-automatic pistols. This stainless steel piston is part of the Nielsen device that enables your host pistol's slide to cycle properly while your suppressor is mounted. If you're switching between different firearms or calibers under the same suppressor platform, SilencerCo pistons let you swap quickly without buying new cans—a practical advantage for the serious shooter with multiple hosts.
Built from 17-4 stainless steel and heat-treated for durability, this piston features female threading that mates directly to SilencerCo's threaded barrels. The .578x28 XL specification matches a range of SilencerCo cans, and the stainless construction resists corrosion even in suppressed shooting environments. For fixed-barrel applications, you can pair this piston with a Fixed Barrel Spacer to adapt your suppressor setup.
This is the kind of component that separates a locked-in suppressor rig from a flexible one. Whether you're working with an Omega, Omega 36M, Octane, or Osprey series can on a Charlie Piston Mount, having the right piston on hand means you're ready to adapt without downtime. Reliable, durable, and built to SilencerCo's standard—this piston is essential hardware for any suppressed semi-auto pistol platform.
| Material | 17-4 Stainless Steel, heat-treated |
| Thread Specification | .578x28 XL |
| Piston Type | SilencerCo Nielsen Device Piston |
| Mounting Interface | Female threading to SilencerCo barrels |
The AC1346 piston is compatible with SilencerCo Omega, Omega 36M, Omega K Series, Hybrid 46, Hybrid 46M, Osprey Series, and Octane Series cans—specifically those equipped with a Charlie Piston Mount. Always verify your specific suppressor model before ordering.
Yes. Pair this piston with a Fixed Barrel Spacer to adapt it for fixed-barrel mounting. Without the spacer, it's designed for semi-automatic cycling on moving-barrel pistols.
The piston itself is host-agnostic—it attaches to SilencerCo threaded barrels. As long as your pistols have compatible barrels with .578x28 XL threading, you can use the same piston across different firearms, making it a cost-effective option for multi-host suppressor systems.
17-4 stainless steel and heat treatment provide strong corrosion resistance, which is important in suppressed shooting where moisture exposure is common. Standard maintenance and storage practices will keep it performing reliably.
SKU: 167515657