{"product_id":"wilson-combat-ar-15-5-56-nato-complete-bolt-carrier-assembly-chrome-lined-parkerized-tr-bca","title":"Wilson Combat AR-15 5.56 NATO Complete Bolt Carrier Assembly, Chrome-Lined \u0026 Parkerized TR-BCA","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe Wilson Combat Bolt Carrier Assembly for 5.56 NATO is built by top domestic Mil-Spec contractors and is designed to deliver long-term reliability in AR-15 pattern rifles. The bolt is precision machined from Carpenter 158 steel, shot peened for increased strength, and includes a tool steel extractor and ejector with the proper extractor spring. Bolts are randomly batch HPT (High Pressure Tested) for added confidence. The 8620 steel carrier features a Parkerized exterior with an internally chrome-lined bore, plus a properly machined Mil-Spec gas key that is chrome lined, phosphated, and heat treated to GI specifications. The gas key is secured with Grade 8 fasteners and properly staked during final inspection for dependable gas system function.\u003c\/p\u003e\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMil-Spec 5.56 bolt carrier assembly ideal for spares, builds, and hard-use AR-15 rifles\u003c\/li\u003e\n\u003cli\u003eCarpenter 158 bolt, shot peened for strength, with randomly batch High Pressure Testing (HPT)\u003c\/li\u003e\n\u003cli\u003eParkerized finish with internally chrome-lined carrier for durability and smoother cleaning\u003c\/li\u003e\n\u003cli\u003eTool steel extractor\/ejector; extractor made from 4140 gun-quality steel per Mil-Spec\u003c\/li\u003e\n\u003cli\u003eChrome-lined, phosphated, heat-treated Mil-Spec gas key secured with Grade 8 fasteners and staked\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Wilson Combat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e TR-BCA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 810025500719\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlatform Fit:\u003c\/strong\u003e AR-15 \/ 5.56 case-head based AR rifles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber Compatibility:\u003c\/strong\u003e 5.56 NATO (drop-in fit for 5.56 case-head based AR rifles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt Material:\u003c\/strong\u003e Carpenter 158 steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Material:\u003c\/strong\u003e 8620 steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtractor Material:\u003c\/strong\u003e 4140 gun-quality steel (Mil-Spec)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Parkerized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Lining:\u003c\/strong\u003e Internally chrome lined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTesting:\u003c\/strong\u003e Randomly batch High Pressure Tested (HPT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Key:\u003c\/strong\u003e Mil-Spec; chrome lined, phosphated, heat treated; Grade 8 fasteners; properly staked\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product’s manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"Wilson Combat","offers":[{"title":"Default Title","offer_id":44076974833786,"sku":"FLX-WCTR-BCA","price":192.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/283691466.jpg?v=1767587074","url":"https:\/\/tlooutdoors.com\/products\/wilson-combat-ar-15-5-56-nato-complete-bolt-carrier-assembly-chrome-lined-parkerized-tr-bca","provider":"TLO Outdoors","version":"1.0","type":"link"}