{"product_id":"solgw-patrol-sl-16-5-56-fsb-urg","title":"Sons of Liberty Gun Works PATROL SL 16\" 5.56 FSB Upper Receiver Group – AR-15 Compatible","description":"\u003cp\u003eThe SOLGW PATROL SL 16\" 5.56 Upper Receiver Group is a complete AR-15 pattern upper assembly chambered in 5.56 NATO, built around a 16-inch barrel with a fixed front sight base configuration. This upper is designed for shooters who prefer traditional FSB reliability and want a duty-grade, ready-to-install upper that pairs with mil-spec AR-15 lower receivers. The 16-inch barrel length meets legal requirements for rifles while maintaining maneuverability.\u003c\/p\u003e\u003cp\u003eThe upper receiver is forged 7075-T6 aluminum with a Type III hard-coat anodized finish for corrosion resistance. The barrel features a government profile with a 1:7 twist rate for stabilizing heavier 5.56 NATO and .223 Remington projectiles. The front sight base is A2-style, pinned and permanently attached. This upper group includes the bolt carrier group and charging handle, making it a complete drop-in solution. Installation requires only basic AR-15 assembly knowledge—attach to a compatible lower receiver using standard takedown pins.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO \/ .223 Remington\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete Upper Receiver Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Lower:\u003c\/strong\u003e Mil-spec AR-15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrel Length:\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Forged 7075-T6 aluminum upper, government profile barrel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Type III hard-coat anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier group, charging handle, fixed front sight base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in to mil-spec AR-15 lower, basic assembly required\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":47938897969407,"sku":"SOLGWPTRLSLUPPER16-556","price":665.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2876728.jpg?v=1766535462","url":"https:\/\/doublestackstore.com\/products\/solgw-patrol-sl-16-5-56-fsb-urg","provider":"Double Stack Store","version":"1.0","type":"link"}