{"product_id":"heckler-koch-hk4-pistol-parts-kit","title":"Heckler \u0026 Koch HK4 Pistol Parts Kit","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan style=\"background-color: #ffff99;\"\u003e*This kit is a one of one! What you see is what you get!\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan class=\"ui-provider a b c d e f g h i j k l m n o p q r s t u v w x y z ab ac ae af ag ah ai aj ak\" dir=\"ltr\"\u003e This parts kit includes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003eSlide\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eGood condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSlightly worn\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSafety selector\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003eMarkings:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eHarrington \u0026amp; Richardson Inc. Worcester, Mass USA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMade in Germany\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e1871 1971\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMod HK 4\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003eBarrel\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003e.380 ACP\u003c\/span\u003e \u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eGood condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eOutside of barrel slightly worn\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIntact rifling\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003eMarkings:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eHK 9k\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003e07757\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003eGrips\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eExcellent condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eHK stamped\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14pt;\"\u003eMagazine\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eExcellent condition\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFunctional\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBluing intact\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSmall parts bag\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cspan class=\"ui-provider a b c d e f g h i j k l m n o p q r s t u v w x y z ab ac ae af ag ah ai aj ak\" dir=\"ltr\"\u003eThe HK4 is a fascinating snapshot into the genesis of Heckler \u0026amp; Koch's pistol program. The HK4 was their first model ever manufactured! Made during the mid 1960s it saw widespread success on the civilian market, as well as some limited use by the West German government. Much of this success was due to this pistol being able to switch calibers between .22, .25, .32, \u0026amp; .380! To do this all one has to do is change out the magazine, recoil spring, and barrel. This modularity helped to make it such a prevalent pick. This flexibility likely led to the West German Customs service selecting it as their sidearm of choice for a time. If you're into H\u0026amp;K, Cold War pistols, or just interesting pistol designs you'd be well served picking one of these up for it's historical value, sleek design, and range plinking potential!\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"HK","offers":[{"title":"Default Title","offer_id":52669026828610,"sku":"KIT0236","price":199.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_1089__00775.1727902834.1280.1280.jpg?v=1779201198","url":"https:\/\/centerfiresystems.com\/products\/heckler-koch-hk4-pistol-parts-kit","provider":"Centerfire Systems","version":"1.0","type":"link"}