{"product_id":"ballistic-bbl-5-56-16-classic-srs","title":"Ballistic Advantage 5.56 NATO 16\" Classic Series Barrel – AR-15","description":"\u003cp\u003eThe Ballistic Advantage 5.56 NATO 16\" Classic Series barrel delivers reliable performance for general-purpose AR-15 builds. This government profile barrel is chambered in 5.56 NATO (also accepts .223 Remington) and provides the accuracy and durability expected from a mid-length gas system configuration. The 16\" length meets legal rifle requirements without requiring NFA registration, making it a practical choice for range use, competition, or defensive applications.\u003c\/p\u003e\u003cp\u003eManufactured from 4150 Chrome Moly Vanadium steel with a QPQ Nitride finish, this barrel resists corrosion and wear while maintaining heat dissipation during sustained fire. The barrel extension is properly torqued and pinned, and the chamber is stress-relief mapped for consistent headspacing. Compatible with standard AR-15 upper receivers and accepts .750\" gas blocks. Mid-length gas system reduces felt recoil and bolt carrier velocity compared to carbine-length systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Government Profile Barrel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 5.56 NATO \/ .223 Remington\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas System:\u003c\/strong\u003e Mid-length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 4150 Chrome Moly Vanadium Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e QPQ Nitride\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwist Rate:\u003c\/strong\u003e 1:7 (optimized for 55-77 grain projectiles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Block Diameter:\u003c\/strong\u003e .750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15 platform rifles\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ballistic Advantage","offers":[{"title":"Default Title","offer_id":47941614338303,"sku":"BABL556014MC","price":175.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2855672.jpg?v=1766569538","url":"https:\/\/doublestackstore.com\/products\/ballistic-bbl-5-56-16-classic-srs","provider":"Double Stack Store","version":"1.0","type":"link"}