{"product_id":"hk21-fmp-belt-feed-mechanism","title":"HK21\/FMP Belt Feed Mechanism","description":"\u003cp\u003e\u003cspan style=\"font-weight: 400; font-size: 14pt;\"\u003eThese HK-21 feed mechanisms were made under license by FMP to supply their armed forces.  FMP’s early variation of the H\u0026amp;K feed mechanism followed in the footsteps of its H\u0026amp;K big brother, which was also designed for use with the same NATO 7.62x51 cartridge. \\ Although these FMP feed mechs may show signs of wear or use, they would be excellent for anyone needing spares for their HK-21 build; especially, to make it all match if it’s an FMP kit from Portugal! Get these before they’re gone! Limited stock!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400; font-size: 14pt;\"\u003eNo top or bottom plate.\u003c\/span\u003e\u003c\/p\u003e","brand":"HK","offers":[{"title":"Default Title","offer_id":52668757770562,"sku":"HK210003","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/IMG_2522__83835.1770827160.1280.1280.jpg?v=1774274431","url":"https:\/\/centerfiresystems.com\/products\/hk21-fmp-belt-feed-mechanism","provider":"Centerfire Systems","version":"1.0","type":"link"}