{"product_id":"silencerco-xl-suppressor-piston-for-45-acp-578x28-threads-17-4-stainless-steel-ac1346","title":"SilencerCo XL Suppressor Piston for .45 ACP, .578x28 Threads, 17-4 Stainless Steel AC1346","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe SilencerCo AC1346 XL piston is designed for quick caliber or host changes and is a key component of the Nielsen device, helping suppressor-equipped semi-automatic pistols cycle reliably during barrel unlocking. Built from heat-treated 17-4 stainless steel for maximum durability, it features female threading to mate with SilencerCo threaded barrels. Add a Fixed Barrel Spacer when using fixed-barrel hosts.\u003c\/p\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eXL-length .578x28 piston for .45 ACP pistol suppressor setups\u003c\/li\u003e\n  \u003cli\u003eHeat-treated 17-4 stainless steel construction for long service life\u003c\/li\u003e\n  \u003cli\u003ePart of the Nielsen device system to support consistent semi-auto cycling\u003c\/li\u003e\n  \u003cli\u003eEasy to swap pistons for different hosts and calibers\u003c\/li\u003e\n  \u003cli\u003eFemale threads interface with SilencerCo threaded barrels; use a Fixed Barrel Spacer for fixed barrels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: SilencerCo\u003c\/li\u003e\n  \u003cli\u003eModel: Piston (XL)\u003c\/li\u003e\n  \u003cli\u003eCaliber: .45 ACP\u003c\/li\u003e\n  \u003cli\u003eThread Pattern: .578 x 28 XL\u003c\/li\u003e\n  \u003cli\u003eMaterial: 17-4 Stainless Steel (heat-treated)\u003c\/li\u003e\n  \u003cli\u003eMPN: AC1346\u003c\/li\u003e\n  \u003cli\u003eUPC: 817272015287\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"SilencerCo","offers":[{"title":"Default Title","offer_id":44098664235130,"sku":"FLX-180526","price":88.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/285919593.png?v=1771078084","url":"https:\/\/tlooutdoors.com\/products\/silencerco-xl-suppressor-piston-for-45-acp-578x28-threads-17-4-stainless-steel-ac1346","provider":"TLO Outdoors","version":"1.0","type":"link"}