{"product_id":"lead-steel-ls300-10-5-300-blackout-10-5-1-7-government-profile-ar-15-barrel-pistol-length","title":"Lead \u0026 Steel LS300-10.5 300 Blackout 10.5\" 1:7 Government Profile AR-15 Barrel - Pistol Length","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLead \u0026amp; Steel LS300-10.5\u003c\/span\u003e\u003c\/strong\u003e is a \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e10.5\" 300 Blackout\u003c\/span\u003e\u003c\/strong\u003e barrel purpose-built for AR-15 pistol and SBR platforms. Designed to feed both supersonic and subsonic \u003cstrong\u003e300 AAC Blackout\u003c\/strong\u003e loads, this barrel is an ideal foundation for a compact, suppressed build.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel is turned from \u003cstrong\u003e4150 Chrome Moly Vanadium steel\u003c\/strong\u003e and treated with a \u003cstrong\u003eQPQ black nitride\u003c\/strong\u003e finish for excellent wear and corrosion resistance. A \u003cstrong\u003egovernment profile\u003c\/strong\u003e keeps the contour classic while keeping overall weight manageable, and the \u003cstrong\u003e1:7\" twist\u003c\/strong\u003e stabilizes a wide range of supersonic 300 BLK projectiles.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003epistol-length gas system\u003c\/strong\u003e is matched to the 10.5\" length, and \u003cstrong\u003eM4 feed ramps\u003c\/strong\u003e are cut for reliable feeding across magazine and ammunition choices. The muzzle is threaded \u003cstrong\u003e5\/8x24\u003c\/strong\u003e to accept standard 300 Blackout muzzle devices and suppressors. At roughly \u003cstrong\u003e20.80 oz\u003c\/strong\u003e, the LS300-10.5 is a balanced choice for compact AR pistol builds.\u003c\/span\u003e\u003c\/p\u003e","brand":"Lead \u0026 Steel","offers":[{"title":"Default Title","offer_id":55054716043586,"sku":"185369","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_8cc568b6-9724-4f40-8f10-9b6291cfe86c.png?v=1784720848","url":"https:\/\/centerfiresystems.com\/products\/lead-steel-ls300-10-5-300-blackout-10-5-1-7-government-profile-ar-15-barrel-pistol-length","provider":"Centerfire Systems","version":"1.0","type":"link"}