{"product_id":"stern-defense-45-acp-16-10-1-16-black-melonite-barrel-4150-chrome-moly-steel","title":"Stern Defense 45 ACP 16.10\" 1:16\" Black Melonite Barrel - 4150 Chrome Moly Steel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStern Defense .45 ACP Barrel\u003c\/span\u003e\u003c\/strong\u003e is a drop-in replacement barrel purpose-built for dedicated \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e45 ACP\u003c\/span\u003e\u003c\/strong\u003e pistol-caliber carbine and AR-style platforms. At \u003cstrong\u003e16.10 inches\u003c\/strong\u003e, it gives builders the length needed for a standard carbine-class build while still fitting a wide range of AR handguards and uppers.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel is machined from \u003cstrong\u003e4150 Chrome Moly Steel\u003c\/strong\u003e and treated with a \u003cstrong\u003eBlack Melonite\u003c\/strong\u003e finish for corrosion resistance and long service life under hard use. A \u003cstrong\u003e1:16 inch\u003c\/strong\u003e rate of twist is well-matched to common \u003cstrong\u003e45 ACP\u003c\/strong\u003e projectile weights, and the muzzle is cut with a \u003cstrong\u003e.578x28\u003c\/strong\u003e thread pattern for use with 45 ACP-spec muzzle devices and adapters.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned as a drop-in option for shooters assembling a dedicated \u003cstrong\u003e45 ACP AR-15\u003c\/strong\u003e upper, this Stern Defense barrel ships without iron sights, leaving the top of the rail free for optics, red dots, or back-up iron sights of the builder's choice. It is well-suited for use with standard AR-15 components for a complete dedicated pistol-caliber carbine build.\u003c\/span\u003e\u003c\/p\u003e","brand":"Stern Defense","offers":[{"title":"Default Title","offer_id":55045188452674,"sku":"174726","price":156.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_14b980fd-bc75-4e0d-b8a6-84ab75924a3a.png?v=1784696314","url":"https:\/\/centerfiresystems.com\/products\/stern-defense-45-acp-16-10-1-16-black-melonite-barrel-4150-chrome-moly-steel","provider":"Centerfire Systems","version":"1.0","type":"link"}