{"id":5482,"date":"2024-02-13T19:59:19","date_gmt":"2024-02-13T19:59:19","guid":{"rendered":"https:\/\/nbg.eu\/?post_type=product&#038;p=5482"},"modified":"2026-10-17T03:27:42","modified_gmt":"2026-10-17T00:27:42","slug":"geissele-chf-chrome-lined-barrel-5-56-12-5","status":"publish","type":"product","link":"https:\/\/nbg.eu\/it\/product\/geissele-chf-chrome-lined-barrel-5-56-12-5\/","title":{"rendered":"Geissele CHF, Chrome Lined Barrel, 5.56 &#8211; 12.5&#8243;"},"content":{"rendered":"<div class=\"product-description\">\n<h2>Geissele CHF Chrome Lined Barrel, 5.56 &#8211; 12.5&#8243; (Carbine Gas)<\/h2>\n<p>Geissele cold hammer forged (CHF) barrels are machined and forged at Geissele&#8217;s facility in North Wales, Pennsylvania (USA). Every barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI). The chrome-lined bore and manganese phosphate exterior suit a hard-use sporting rifle, a tuned competition build or anything in between.<\/p>\n<p>The 12.5 in length is paired with a carbine-length gas system and a 0.070 in gas port.<\/p>\n<ul>\n<li>Cold hammer forged from chrome moly vanadium steel, chrome-lined bore<\/li>\n<li>High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI)<\/li>\n<li>Geissele Taper Profile<\/li>\n<li>Carbine-length gas system with a 0.750 in gas block journal<\/li>\n<li>M4 barrel extension with M4 feed ramps<\/li>\n<li>1\/2\u00d728 muzzle thread for standard 5.56 muzzle devices<\/li>\n<\/ul>\n<p>Supplied as a bare barrel &#8211; gas block and installation are not included. One dimple is machined for the gas block set screw. Geissele recommends that the barrel is installed by a qualified gunsmith.<\/p>\n<h3>Specifications:<\/h3>\n<ul>\n<li>Chamber: 5.56<\/li>\n<li>Length: 318 mm (12.5 in)<\/li>\n<li>Weight: 635 g (1.4 lb)<\/li>\n<li>Rifling: cold hammer forged<\/li>\n<li>Twist: 1:7<\/li>\n<li>Profile: Geissele Taper Profile<\/li>\n<li>Gas system: carbine length<\/li>\n<li>Gas block diameter: 0.750 in<\/li>\n<li>Gas port: 0.070 in<\/li>\n<li>Muzzle thread: 1\/2\u00d728<\/li>\n<li>Barrel extension: M4 feed ramps<\/li>\n<li>Material: chrome moly vanadium steel, chrome-lined<\/li>\n<li>Finish: manganese phosphate<\/li>\n<li>Geissele part number: 05-2988<\/li>\n<li>Made in USA<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Geissele cold hammer forged, chrome-lined 5.56 barrel, 318 mm (12.5 in), carbine-length gas system, 1:7 twist, 1\/2\u00d728 muzzle thread, M4 feed ramps. HPT\/MPI tested; weight 635 g (1.4 lb).<\/p>\n","protected":false},"featured_media":5487,"template":"","meta":{"_acf_changed":false},"product_brand":[11376],"product_cat":[265,263,219,271],"product_tag":[],"class_list":{"0":"post-5482","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-geissele","7":"product_cat-barrels","8":"product_cat-carbines","9":"product_cat-rifle","10":"product_cat-rifle-tuning","12":"first","13":"instock","14":"taxable","15":"shipping-taxable","16":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product\/5482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/media\/5487"}],"wp:attachment":[{"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/media?parent=5482"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product_brand?post=5482"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product_cat?post=5482"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nbg.eu\/it\/wp-json\/wp\/v2\/product_tag?post=5482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}