{"product_id":"yhm-nielsen-piston-578-28-45cal","title":"Yankee Hill Machine Co Nielsen Piston .578-28 Thread Pitch – .45 Caliber Suppressors","description":"\u003cp\u003eThe YHM Nielsen Piston provides reliable Nielsen device (booster) function for .45 caliber pistol suppressors using the industry-standard .578-28 thread pitch. This piston allows the suppressor to decouple momentarily during the firing cycle, enabling proper cycling of tilting-barrel semi-automatic pistols. Without a functioning Nielsen device, many browning-style pistols will short-stroke or fail to cycle when suppressed.\u003c\/p\u003e\u003cp\u003eThis piston is machined from heat-treated steel with a durable finish to withstand the rigors of suppressed pistol use. It threads directly onto compatible YHM and other Nielsen-compatible suppressors and interfaces with host pistol barrels threaded .578-28. Installation is straightforward: remove the existing piston or fixed mount from the suppressor, thread this piston into the suppressor mount, and attach to the host barrel. Confirm proper thread engagement and piston movement before firing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Nielsen Device Piston\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Pitch:\u003c\/strong\u003e .578-28 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .45 ACP \/ .45 Auto\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-Treated Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Suppressors:\u003c\/strong\u003e YHM and other Nielsen-compatible .45 caliber pistol suppressors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Enables proper cycling of tilting-barrel semi-automatic pistols\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yankee Hill Machine Co","offers":[{"title":"Default Title","offer_id":47943799374079,"sku":"YHM-2062-28","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2888893.jpg?v=1766601491","url":"https:\/\/doublestackstore.com\/products\/yhm-nielsen-piston-578-28-45cal","provider":"Double Stack Store","version":"1.0","type":"link"}