{"product_id":"jk-armament-jk155-piston-45-cal-578x28-stainless-steel-pistol-booster","title":"JK Armament JK155 Piston .45 Cal .578x28 Stainless Steel - Pistol Booster","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eJK Armament JK155\u003c\/span\u003e\u003c\/strong\u003e booster piston is a precision-machined component designed to screw onto a threaded pistol barrel. This model fits \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e.45 Cal\u003c\/span\u003e\u003c\/strong\u003e pistol barrels used with pistol suppressor systems.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMachined from \u003cstrong\u003e17-4 PH stainless steel\u003c\/strong\u003e, the JK155 piston threads onto barrels with the standard \u003cstrong\u003e.578\"x28\u003c\/strong\u003e pattern common to \u003cstrong\u003e.45 ACP\u003c\/strong\u003e and other large-bore pistol cartridges. It measures \u003cstrong\u003e1.55\" in diameter\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eJK Armament offers the JK155 piston in both 1\/2x28 (for 9mm and similar smaller pistol calibers) and .578x28 (for .45 ACP and other larger pistol calibers) thread patterns. Always confirm your barrel thread pitch and host suppressor compatibility before installation.\u003c\/span\u003e\u003c\/p\u003e","brand":"JK Armament","offers":[{"title":"Default Title","offer_id":55064628363586,"sku":"189133","price":90.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_f0d16667-f1d3-4a99-bed8-1fbb2af0b4b6.png?v=1784737151","url":"https:\/\/centerfiresystems.com\/products\/jk-armament-jk155-piston-45-cal-578x28-stainless-steel-pistol-booster","provider":"Centerfire Systems","version":"1.0","type":"link"}