{"product_id":"solgw-castle-nut","title":"Sons of Liberty Gun Works Castle Nut – AR-15\/AR-10","description":"\u003cp\u003eThe SOLGW Castle Nut secures your buffer tube to the lower receiver on AR-15 and AR-10 platform rifles. This component threads onto the receiver extension (buffer tube) and locks it in place, preventing rotation under recoil and ensuring consistent alignment of your stock or brace. Replacing a worn or damaged castle nut restores proper tension and eliminates unwanted movement in your buffer system.\u003c\/p\u003e\u003cp\u003eMachined from steel with a manganese phosphate finish for corrosion resistance and durability. Installation requires a castle nut wrench and armorer's tool to properly stake the nut to the receiver end plate, a critical step to prevent loosening during use. This is a drop-in replacement part, but proper staking requires basic armorer knowledge and tools.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Castle Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15, AR-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Manganese Phosphate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (Staking Recommended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e (1) Castle Nut\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":48301568950527,"sku":"SOLGW-CASTLENUT","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/5799727.jpg?v=1773888836","url":"https:\/\/doublestackstore.com\/products\/solgw-castle-nut","provider":"Double Stack Store","version":"1.0","type":"link"}