{"product_id":"silencerco-ac31-osprey-octane-piston-9-16x24-40-s-w-stainless-steel","title":"SilencerCo AC31 Osprey\/Octane Piston 9\/16x24 40 S\u0026W Stainless Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSilencerCo AC31\u003c\/span\u003e\u003c\/strong\u003e is an interchangeable \u003cstrong\u003esuppressor piston\u003c\/strong\u003e designed for the \u003cstrong\u003eOsprey\u003c\/strong\u003e and \u003cstrong\u003eOctane\u003c\/strong\u003e series pistol suppressors from SilencerCo. This piston allows the shooter to configure their Osprey or Octane for use on \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.40 S\u0026amp;W\u003c\/span\u003e\u003c\/strong\u003e host pistols equipped with a \u003cstrong\u003e9\/16\"-24\u003c\/strong\u003e threaded barrel.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003ePistons form the moving half of the Nielsen-style device that decouples the suppressor from the host firearm's barrel. When the slide cycles, the piston (rather than the entire suppressor) travels back and forth on the barrel, reducing the stress placed on the pistol's threads and locking lugs while maintaining a tight, repeatable seal at the muzzle. The AC31 is easily swapped out for other pistons in the Osprey\/Octane family, allowing a single suppressor to be reconfigured across different host calibers and thread patterns.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis piston is machined from \u003cstrong\u003e17-4 stainless steel\u003c\/strong\u003e and then \u003cstrong\u003eheat treated\u003c\/strong\u003e for maximum durability and wear resistance under the repeated cycling of semi-automatic pistol use. It carries a \u003cstrong\u003e9\/16\"-24 tpi\u003c\/strong\u003e thread pattern that threads directly onto the host barrel, and the \u003cstrong\u003estainless\u003c\/strong\u003e finish matches SilencerCo's premium suppressor hardware.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe AC31 is a \u003cstrong\u003e.40 S\u0026amp;W\u003c\/strong\u003e piston intended exclusively for SilencerCo Osprey and Octane pistol suppressors. It is a component\/accessory for a suppressor and is not a suppressor itself.\u003c\/span\u003e\u003c\/p\u003e","brand":"SilencerCo","offers":[{"title":"Default Title","offer_id":54990647722306,"sku":"1459","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_5b1e02c6-c82b-4952-8a41-99b72727d640.png?v=1784182472","url":"https:\/\/centerfiresystems.com\/products\/silencerco-ac31-osprey-octane-piston-9-16x24-40-s-w-stainless-steel","provider":"Centerfire Systems","version":"1.0","type":"link"}