{"product_id":"silencerco-ac59-osprey-octane-piston-1-2x28-xl-9mm-stainless","title":"SilencerCo AC59 Osprey\/Octane Piston 1\/2x28 XL 9mm Stainless","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eSilencerCo AC59\u003c\/span\u003e\u003c\/strong\u003e is a replacement \u003cstrong\u003episton\u003c\/strong\u003e purpose-built for the \u003cstrong\u003eOsprey\u003c\/strong\u003e and \u003cstrong\u003eOctane\u003c\/strong\u003e series of \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e9mm\u003c\/span\u003e\u003c\/strong\u003e pistol suppressors. This \u003cstrong\u003eextended-length (XL)\u003c\/strong\u003e piston is threaded \u003cstrong\u003e1\/2\"-28\u003c\/strong\u003e, making it the correct fit for 9mm pistol barrels with longer threaded protrusions than a standard profile can clear.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe AC59 piston is machined from \u003cstrong\u003e17-4 stainless steel\u003c\/strong\u003e and then heat treated for maximum durability under the repeated recoil and pressure of suppressed fire. Pistons are the wear component on a fixed-barrel suppressor system: they thread onto the host pistol's barrel and the suppressor body indexes off the piston face, so choosing the right thread pitch and length is essential for proper alignment, concentric lockup, and reliable function of the Osprey or Octane.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003estainless\u003c\/strong\u003e finish provides strong corrosion resistance for shooters who run their suppressor in wet, humid, or sweat-heavy range environments. The \u003cstrong\u003eXL\u003c\/strong\u003e variant adds extra length over the standard 9mm piston to clear the longer shoulder found on common 9mm pistol threaded barrels. Suppressor pistons should be inspected periodically for splits, cracking, or excessive wear and replaced as needed.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhether you're configuring a new \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e9mm\u003c\/span\u003e\u003c\/strong\u003e host pistol for your Osprey or Octane or replacing a worn piston on an existing setup, the \u003cstrong\u003eSilencerCo AC59\u003c\/strong\u003e offers a direct-fit, factory-spec solution engineered by the original manufacturer.\u003c\/span\u003e\u003c\/p\u003e","brand":"SilencerCo","offers":[{"title":"Default Title","offer_id":54990539292994,"sku":"1460","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_27f3399c-17b4-4070-8f44-a22ab29bf0b1.png?v=1784180936","url":"https:\/\/centerfiresystems.com\/products\/silencerco-ac59-osprey-octane-piston-1-2x28-xl-9mm-stainless","provider":"Centerfire Systems","version":"1.0","type":"link"}