{"product_id":"lantac-223-5-56-e-bcg-full-auto-style-bolt-carrier-group-qpq-black-nitride","title":"LANTAC 223\/5.56 E-BCG Full Auto Style Bolt Carrier Group - QPQ Black Nitride","description":"\u003cp\u003e\u003cstrong\u003eLANTAC 223\/5.56 E-BCG Full Auto Style Bolt Carrier Group - QPQ Black Nitride\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003cbr\u003eThe LANTAC Enhanced Bolt Carrier Group (E-BCG) is designed for full-auto operation, offering increased mass and lock time. This precision-machined carrier group is coated with QPQ Black Nitride, providing a hard, smooth surface with enhanced corrosion resistance and low friction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: The carrier is made from 8620 steel and the bolt is manufactured from Carpenter 158 or 9310 steel, both shot peened and magnetically particle inspected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: The entire carrier assembly is coated with QPQ Black Nitride, a specialized type of Nitrocarburizing Case Hardening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: The carrier group weighs 11.7oz, contributing to smoother operation and increased lock time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Key\u003c\/strong\u003e: The gas key is hard chrome lined for maximum wear resistance and is fitted with gasket sealer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCam Pin\u003c\/strong\u003e: The cam pin is made from 17-4PH Stainless Steel and is hardened to H900 condition (approximately 45RC).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: All critical dimensions are hard turned and ground after heat treat to ensure precise fit and function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly\u003c\/strong\u003e: Grade 8 fasteners are used throughout the assembly, and the gas key is properly staked at four points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 id=\"unique-gas-porting\"\u003eUnique Gas Porting\u003c\/h3\u003e\n\u003cp\u003eThe LANTAC E-BCG features unique shrouded and forward-facing gas ports that have been resized to vent gas differently from a standard carrier. This design results in a smoother energy pulse with a softer start to carrier movement, making the rifle run flatter and cooler.\u003c\/p\u003e\n\u003ch3 id=\"enhanced-lock-position\"\u003eEnhanced Lock Position\u003c\/h3\u003e\n\u003cp\u003eThe flared boss at the tail of the carrier enhances the BCG's lock position within the upper receiver, providing a more consistent and accurate lockup.\u003c\/p\u003e\n\u003ch3 id=\"reduced-pressurization\"\u003eReduced Pressurization\u003c\/h3\u003e\n\u003cp\u003eThe forward porting and unique shape of the E-BCG assist in reducing pressurization inside the upper receiver, which is particularly beneficial for short-barreled rifles running suppressors.\u003c\/p\u003e\n\u003ch3 id=\"high-quality-components\"\u003eHigh-Quality Components\u003c\/h3\u003e\n\u003cp\u003eAll critical components are precision machined and heat treated to ensure durability and accuracy. The bolt is shot peened and magnetically particle inspected to guarantee reliability.\u003c\/p\u003e\n\u003ch3 id=\"compatibility\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThe LANTAC E-BCG is compatible with all standard AR-15 platforms chambered in .223, .223 Wylde, 5.56, and 300 Blackout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 id=\"accuracy-improvement\"\u003eAccuracy Improvement\u003c\/h3\u003e\n\u003cp\u003eThe consistent lock position and reduced pressurization contribute to improved accuracy.\u003c\/p\u003e\n\u003ch3 id=\"improved-functionality\"\u003eImproved Functionality\u003c\/h3\u003e\n\u003cp\u003eThe enhanced gas porting and carrier shape result in smoother operation and a softer start to carrier movement, making the rifle more reliable and user-friendly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConclusion\u003c\/strong\u003e\u003cbr\u003eThe LANTAC 223\/5.56 E-BCG Full Auto Style Bolt Carrier Group - QPQ Black Nitride is a high-performance component designed for precision and reliability. Its unique features and high-quality materials ensure that it will meet the demands of even the most rigorous use cases.\u003c\/p\u003e\n","brand":"LANTAC","offers":[{"title":"Default Title","offer_id":44681028796635,"sku":"01-UP-556-NIT-EBCG","price":261.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/1072\/7131\/files\/179882610.webp?v=1738334094","url":"https:\/\/www.atcostammo.com\/products\/lantac-223-5-56-e-bcg-full-auto-style-bolt-carrier-group-qpq-black-nitride","provider":"AtCostAmmo.com","version":"1.0","type":"link"}