Gemtech Piston Fits GM-45/BLACKSIDE-45 Sig P220

Gemtech Piston GM-45 Features The Piston GM-45 LID Piston Core is engineered to deliver seamless thread compatibility conversion between US standard .578x28 pistol hosts and European metric-threaded pistol hosts giving Gemtech GM-45 and BLACKSIDE-45 suppressor owners the flexibility to run their investment across a significantly broader range of compatible host platforms without changing suppressors or modifying the host firearm. The ability to swap thread pitch via a single LID Piston Core replacement is a practical and cost-effective solution for shooters who own or operate both US standard and European metric-threaded .45 caliber pistols including 1911-pattern hosts and the SIG P220 providing a versatile one-suppressor solution for a multi-host collection. The .578x28 thread pitch is the established standard for US .45 ACP pistol suppressor mounts across the most common host platforms in this bore class. As a Nielsen device piston the Piston GM-45 allows the GM-45 or BLACKSIDE-45 suppressor to move independently of the barrel during the firing cycle on tilting barrel semi-automatic pistol designs ensuring proper slide cycling and reliable function without suppressor interference on both US standard and European metric-threaded hosts. Selecting the correct host-specific piston is critical for reliable suppressor function on semi-automatic pistol platforms and the Piston GM-45 LID Piston Core is engineered to the dimensional tolerances required for consistent lockup and dependable cycling within the Gemtech suppressor ecosystem. For any Gemtech GM-45 or BLACKSIDE-45 owner who wants the flexibility to run their suppressor on US standard .578x28-threaded hosts including 1911-pattern pistols and the SIG P220 the Piston GM-45 is the correct and purpose-built thread conversion solution. Gemtech Piston GM-45 Specifications Manufacturer: Gemtech Model: Piston GM-45 Type: LID Piston Core Compatible Suppressors: GM-45 BLACKSIDE-45 Thread Pattern: .578x28 Profile: Flush Compatible Hosts: US Standard .578x28 Threaded Pistols 1911-Pattern Pistols SIG P220 Function: Thread Conversion Between US Standard and European Metric Hosts