{"product_id":"cmmg-lpk-556-blk","title":"CMMG LPK 556 BLK – AR-15 Lower Parts Kit","description":"\u003cp\u003eThe CMMG LPK 556 BLK is a complete lower parts kit for building or refurbishing an AR-15 platform rifle. This kit includes all the small parts needed to complete a stripped lower receiver: trigger group, hammer, safety selector, magazine catch, bolt catch, and all associated springs, detents, and pins. It's a solid choice for home builders or gunsmiths looking for quality components at a fair price, or for replacing worn or damaged parts in an existing lower.\u003c\/p\u003e\u003cp\u003eConstructed from mil-spec components with a black finish, this kit is designed for drop-in installation by anyone with basic AR-15 assembly knowledge and standard gunsmithing tools. Most builders can complete installation in under an hour with a punch set, hammer, and patience—especially when managing small detents and springs. No specialized machining or fitting required.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Complete Lower Parts Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15, Mil-Spec Lower Receivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel Components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (Basic Tools Required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Trigger Group, Hammer, Safety Selector, Magazine Catch, Bolt Catch, Springs, Detents, Pins\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CMMG","offers":[{"title":"Default Title","offer_id":47934697767167,"sku":"CMMG55CA6C5","price":68.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1256500.jpg?v=1766476635","url":"https:\/\/doublestackstore.com\/products\/cmmg-lpk-556-blk","provider":"Double Stack Store","version":"1.0","type":"link"}