{"product_id":"solgw-l89-bs-v2-5-56-13-7-nox-blk","title":"SOLGW L89 BS V2 5.56 NATO 13.7\" Upper Receiver with NOX – AR-15 Platform","description":"\u003cp\u003eThe Sons of Liberty Gun Works L89 BS V2 is a complete 5.56 NATO upper receiver built around a 13.7-inch barrel with a pinned and welded NOX muzzle device to achieve the legal 16-inch minimum barrel length. This configuration delivers a compact, maneuverable carbine that meets federal requirements without requiring an NFA tax stamp. The upper fits standard mil-spec AR-15 lower receivers and is designed for shooters who prioritize both portability and compliance.\u003c\/p\u003e\u003cp\u003eThe upper features a mid-length gas system for reliable cycling and reduced recoil impulse. The barrel is chambered in 5.56 NATO with a .223 Wylde chamber for accuracy with both .223 Remington and 5.56 NATO ammunition. SOLGW's BS (Bomber Short) handguard provides a full-length M-LOK mounting surface while maintaining a low profile. The upper receiver and barrel extension are finished in black. Ships as a complete upper assembly ready to install on your lower receiver—no gunsmithing required. Does not include bolt carrier group or charging handle unless otherwise specified in variant options.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Complete upper receiver assembly\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 13.7\" (16\" OAL with pinned\/welded NOX)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Mid-length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandguard:\u003c\/strong\u003e SOLGW BS (Bomber Short) M-LOK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Complete upper assembly, pinned\/welded NOX muzzle device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-in, fits mil-spec AR-15 lowers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sons of Liberty Gun Works","offers":[{"title":"Default Title","offer_id":47938890694911,"sku":"SOLGWM4L89BSUPP137","price":1364.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/5502605.jpg?v=1766535292","url":"https:\/\/doublestackstore.com\/products\/solgw-l89-bs-v2-5-56-13-7-nox-blk","provider":"Double Stack Store","version":"1.0","type":"link"}