{"product_id":"solgw-bcg-5-56-phosphate-blk","title":"Sons of Liberty Gun Works BCG 5.56 Phosphate Black – AR-15\/M16","description":"\u003cp\u003eThe Sons of Liberty Gun Works 5.56 Bolt Carrier Group is a mil-spec replacement or upgrade for AR-15 and M16 platform rifles. Designed to handle the pressures and cycling demands of 5.56 NATO and .223 Remington, this BCG delivers reliable function for duty, competition, or defensive applications. Whether you're replacing a worn component or building a new upper, this carrier group provides the core reliability your AR platform depends on.\u003c\/p\u003e\u003cp\u003eThe carrier is machined from 8620 steel with a traditional phosphate finish for corrosion resistance and lubricity. The bolt is made from 9310 steel, properly staked and MPI (Magnetic Particle Inspected) to ensure structural integrity. Gas key is secured with Grade 8 fasteners and properly staked. This is a drop-in component for standard AR-15\/M16 upper receivers—no gunsmithing required, though proper headspacing should be verified when installing any new BCG.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Bolt Carrier Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15, M16 (5.56 NATO\/.223 Remington)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Material:\u003c\/strong\u003e 8620 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt Material:\u003c\/strong\u003e 9310 Steel, MPI Tested\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Phosphate (Black)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (Verify Headspacing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt Carrier Group Complete\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":48301568753919,"sku":"SOLGW-BCG556","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/5794384.jpg?v=1773888814","url":"https:\/\/doublestackstore.com\/products\/solgw-bcg-5-56-phosphate-blk","provider":"Double Stack Store","version":"1.0","type":"link"}