Precision machined from 17-4 PH stainless steel, JKs booster piston is the component that screws onto the threaded pistol barrel, mating suppressor and pistol together. The pistons are available in 1\/2×28 threads (nearly all 9mm and some other pistols) and .578×28 threads (.45 ACP and some other larger-than-9mm pistol calibers).<\/p>\n","protected":false},"excerpt":{"rendered":"
Jk Armament JK155PISTON578X28 Piston 45Cal .578″x28 Stainless Steel For Pistol<\/p>\n","protected":false},"featured_media":114996,"comment_status":"open","ping_status":"closed","template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[1193],"product_tag":[],"class_list":["post-115000","product","type-product","status-publish","has-post-thumbnail","product_cat-class-3-parts-accessories","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product\/115000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/comments?post=115000"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/media\/114996"}],"wp:attachment":[{"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/media?parent=115000"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=115000"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=115000"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onyxarms.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=115000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}