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The SilencerCo Common Piston Kit AC728 gives owners of compatible SilencerCo pistol suppressors five common threaded-handgun mounting options in one factory package. It includes pistons for .578x28, 1/2x28, M16x1 LH, M13.5x1 LH, and 9/16x24 barrel threads, allowing a compatible suppressor setup to serve multiple host firearms without purchasing each piston separately. Each piston features a black nitride finish selected for wear resistance and lubricity. The kit also includes booster assembly, M13, and M16 O-ring packs to support maintenance of compatible piston-mount configurations. SilencerCo lists the AC728 kit for the Osprey Series, Octane Series, Omega K Series, Hybrid 46, Omega 36M, and Hybrid 46M. It is intended for compatible piston-mount handgun suppressor configurations; always confirm the specific suppressor model, piston family, host barrel thread pitch, thread direction, and required booster or mount components before installation. SilencerCo has discontinued AC728, making remaining factory inventory an especially useful option for owners who want broad host-thread flexibility from a single genuine SilencerCo piston kit. Popular Pairings
| Manufacturer | SilencerCo | | Product Name | Common Piston Kit | | Manufacturer Part Number | AC728 | | Product Code | AC728 | | UPC | 817272015294 | | Product Type | Suppressor Piston Kit | | Piston Quantity | 5 | | Piston Finish | Black Nitride | | Host Thread Patterns Included | .578x28, 1/2x28, M16x1 LH, M13.5x1 LH, and 9/16x24 | | Compatible Suppressor Families | SilencerCo Osprey Series, Octane Series, Omega K Series, Hybrid 46, Omega 36M, and Hybrid 46M | | Included Pistons | .578x28, 1/2x28, M16x1 LH, M13.5x1 LH, and 9/16x24 | | Included O-Ring Packs | Booster Assembly, M13, and M16 | | Application | Compatible Pistol Suppressor Piston-Mount Configurations | | Manufacturer Status | Discontinued |
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Features
- Five-piston factory kit: Provides five common handgun barrel-thread configurations in one genuine SilencerCo package.
- Broad host-thread coverage: Includes .578x28, 1/2x28, M16x1 LH, M13.5x1 LH, and 9/16x24 pistons for compatible threaded handgun hosts.
- Black nitride finish: Adds wear resistance and lubricity for reliable installation, removal, and long-term service.
- Factory SilencerCo compatibility: Designed for listed Osprey, Octane, Omega K, Hybrid 46, Omega 36M, and Hybrid 46M suppressor families.
- Maintenance O-ring packs included: Includes booster assembly, M13, and M16 O-ring packs for compatible suppressor mounting configurations.
- Multi-host flexibility: Lets a compatible suppressor setup support several common threaded pistol barrel patterns without buying individual pistons one at a time.
- Fitment-conscious configuration: Makes it easier to match the proper piston to each host, while preserving the need to verify thread direction, suppressor compatibility, and required mount components.
- Factory-discontinued kit: A useful genuine SilencerCo option for owners seeking a comprehensive piston assortment while remaining inventory is available.
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