{"product_id":"polished-black-chrome-bcg","title":"Highly Polished Black Chrome BCG — Full Auto Bolt Carrier Group | 5.56 \/ .223 \/ 300 BLK","description":"\u003c!-- ============================================================\n  HIGHLY POLISHED BLACK CHROME BCG — PRODUCT LISTING\n  Paste this whole file into the Shopify description (HTML view). Comments don't render.\n  ============================================================\n  Product title:  Highly Polished Black Chrome BCG — Full Auto Bolt Carrier Group | 5.56 \/ .223 \/ 300 BLK\n  PROPOSED handle (new product): polished-black-chrome-bcg\n  Vendor: TriggerSupply      Price: $249.99      Product type: Bolt Carrier Group\n  Collection: AR-15 Bolt Carrier Groups (\/collections\/ar-15-bolt-carrier-groups)\n  Tags: bcg, black chrome bcg, polished bcg, m16 bcg, full auto bcg, frt bcg, 5.56 bcg, 300 blackout bcg, trigger supply, usa made\n\n  SEO TITLE (53 chars): Black Chrome BCG | High Polish M16 Bolt Carrier Group\n  META DESCRIPTION (145 chars): Mirror-polished black chrome M16 BCG with a C158 MPI and HPT tested bolt, 8620 carrier and staked gas key. USA made, FRT ready, 5.56 and 300 BLK.\n\n  Image alt text (in order):\n   1. Highly polished black chrome M16 BCG, angled view showing the staked gas key\n   2. Black chrome full auto bolt carrier group, side profile\n   3. Mirror-finish black chrome AR-15 BCG with C158 bolt\n  No custom Product schema: Shopify generates it. FAQ schema is at the bottom of this description.\n============================================================ --\u003e\n\u003cdiv id=\"pw\"\u003e\n\u003cstyle\u003e\n#pw .bkc-wrap{display:block !important;width:100% !important;max-width:100% !important;font-family:'Helvetica Neue',Arial,sans-serif !important;color:#2a2a2a !important;background:#ffffff !important;line-height:1.65 !important;box-sizing:border-box !important;}\n#pw .bkc-wrap *{box-sizing:border-box !important;}\n#pw .bkc-bar{display:flex !important;flex-wrap:wrap !important;align-items:center !important;gap:8px !important;padding:10px 0 14px !important;margin:0 0 16px !important;border-bottom:2px solid #e8661a !important;font-size:14px !important;}\n#pw .bkc-bn{font-weight:700 !important;color:#1a1a1a !important;}\n#pw .bkc-dot{color:#e8661a !important;}\n#pw .bkc-bs{color:#666666 !important;font-size:13px !important;}\n#pw .bkc-badges{display:flex !important;flex-wrap:wrap !important;gap:8px !important;margin:0 0 18px !important;}\n#pw .bkc-badge{font-size:12.5px !important;font-weight:600 !important;padding:5px 12px !important;border-radius:20px !important;background:#fdf0e7 !important;color:#a3460c !important;border:1px solid #f3c29f !important;}\n#pw .bkc-badge-g{background:#e9f5ea !important;color:#1f6b2e !important;border-color:#a7d3ad !important;}\n#pw .bkc-lead{font-size:16px !important;color:#2a2a2a !important;margin:0 0 16px !important;}\n#pw .bkc-wrap h2{font-size:21px !important;font-weight:700 !important;color:#1a1a1a !important;margin:28px 0 10px !important;padding:0 0 7px !important;border-bottom:1px solid #eeeeee !important;}\n#pw .bkc-wrap h3{font-size:16px !important;font-weight:700 !important;color:#1a1a1a !important;margin:18px 0 6px !important;}\n#pw .bkc-wrap p{font-size:15px !important;color:#2a2a2a !important;margin:0 0 14px !important;}\n#pw .bkc-wrap ul{margin:0 0 18px !important;padding:0 0 0 22px !important;font-size:15px !important;}\n#pw .bkc-wrap li{margin:0 0 7px !important;color:#2a2a2a !important;}\n#pw .bkc-wrap a{color:#c2510f !important;font-weight:600 !important;text-decoration:underline !important;}\n#pw .bkc-callout{background:#fff7f1 !important;border:1px solid #f3c29f !important;border-left:4px solid #e8661a !important;border-radius:8px !important;padding:14px 18px !important;margin:0 0 18px !important;font-size:15px !important;}\n#pw .bkc-cols{display:flex !important;flex-wrap:wrap !important;gap:14px !important;margin:0 0 18px !important;}\n#pw .bkc-col{flex:1 1 260px !important;background:#fafafa !important;border:1px solid #e5e5e5 !important;border-radius:8px !important;padding:12px 16px !important;}\n#pw .bkc-col ul{margin:0 !important;}\n#pw .bkc-tbl{width:100% !important;border-collapse:collapse !important;margin:0 0 18px !important;font-size:14px !important;}\n#pw .bkc-tbl td{padding:8px 12px !important;border:1px solid #e5e5e5 !important;vertical-align:top !important;color:#2a2a2a !important;}\n#pw .bkc-tbl td.bkc-k{font-weight:600 !important;background:#fafafa !important;width:38% !important;}\n#pw .bkc-cmp th{padding:9px 12px !important;border:1px solid #1a1a1a !important;background:#1a1a1a !important;color:#ffffff !important;text-align:left !important;font-size:14px !important;}\n#pw .bkc-warn{background:#fdf3f3 !important;border:1px solid #e8c5c5 !important;border-left:4px solid #b03a3a !important;border-radius:8px !important;padding:14px 18px !important;margin:0 0 18px !important;font-size:14.5px !important;color:#5a2323 !important;}\n#pw .bkc-links{background:#fafafa !important;border:1px solid #e5e5e5 !important;border-radius:8px !important;padding:14px 18px !important;margin:0 0 10px !important;}\n#pw .bkc-links ul{margin:0 !important;}\n#pw .bkc-fine{font-size:12px !important;color:#888888 !important;margin:16px 0 0 !important;}\n\u003c\/style\u003e\n\n\u003cdiv class=\"bkc-wrap\"\u003e\n\n\u003cdiv class=\"bkc-bar\"\u003e\n\u003cspan class=\"bkc-bn\"\u003eTriggerSupply\u003c\/span\u003e\u003cspan class=\"bkc-dot\"\u003e·\u003c\/span\u003e\u003cspan class=\"bkc-bs\"\u003eHighly Polished Black Chrome · Full Auto Profile · Made in the USA\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"bkc-badges\"\u003e\n\u003cspan class=\"bkc-badge\"\u003e✓ Mirror-Polished Black Chrome\u003c\/span\u003e\n\u003cspan class=\"bkc-badge\"\u003e✓ M16 Full Auto Cut\u003c\/span\u003e\n\u003cspan class=\"bkc-badge\"\u003e✓ C158 Bolt, MPI + HPT Tested\u003c\/span\u003e\n\u003cspan class=\"bkc-badge\"\u003e✓ Staked 4130 Gas Key\u003c\/span\u003e\n\u003cspan class=\"bkc-badge bkc-badge-g\"\u003e✓ Made in the USA\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"bkc-lead\"\u003e\u003cstrong\u003eOur mirror chrome BCG, finished in deep high-polish black chrome.\u003c\/strong\u003e It's the same full auto profile carrier as our \u003ca href=\"\/products\/polished-chrome-bcg\"\u003eHighly Polished Mirror Chrome BCG\u003c\/a\u003e, with the same 8620 carrier, the same MPI and HPT tested C158 bolt, and the same staked gas key. The only difference is the finish: a glossy black mirror that looks like smoked glass when you pull the charging handle, and stands out in a black upper the way silver chrome can't.\u003c\/p\u003e\n\n\u003ch2\u003eWhy a High-Polish Black Chrome BCG\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA finish you'll want to show off.\u003c\/strong\u003e Polished to a true mirror, then finished in black chrome. It reads as black from across the room and shows its shine up close.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlick surface, smoother cycling.\u003c\/strong\u003e A polished finish slides against the receiver walls with less drag than parkerized phosphate, which helps a forced reset trigger reset the same way every shot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasier cleanup.\u003c\/strong\u003e Carbon wipes off a polished surface instead of baking into a porous one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFRT ready.\u003c\/strong\u003e The full auto profile and properly staked gas key give a forced reset trigger the consistent carrier travel it depends on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerified, not assumed.\u003c\/strong\u003e Every bolt is magnetic particle inspected and high-pressure tested before it ships.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"bkc-callout\"\u003e\n\u003cstrong\u003eSame carrier, your choice of shine:\u003c\/strong\u003e mirror silver in the \u003ca href=\"\/products\/polished-chrome-bcg\"\u003ePolished Chrome BCG\u003c\/a\u003e, or mirror black right here. Same specs, same $249.99.\u003c\/div\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable class=\"bkc-tbl\"\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eHighly polished mirror black chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eAR-15 \/ M4 \/ M16, full-auto rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eCalibers\u003c\/td\u003e\n\u003ctd\u003e5.56x45mm NATO, .223 Remington, .300 AAC Blackout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eCarrier profile\u003c\/td\u003e\n\u003ctd\u003eM16 full auto style with properly staked gas key\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eCarrier material\u003c\/td\u003e\n\u003ctd\u003e8620 tool steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eBolt material\u003c\/td\u003e\n\u003ctd\u003eC158\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eGas key\u003c\/td\u003e\n\u003ctd\u003e4130 steel, properly staked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eExtractor \u0026amp; cam pin\u003c\/td\u003e\n\u003ctd\u003e4140 steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eTotal weight\u003c\/td\u003e\n\u003ctd\u003e10.5 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eTrue mil-spec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eTesting\u003c\/td\u003e\n\u003ctd\u003eMagnetic particle inspected (MPI) and high-pressure tested (HPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMade in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$249.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eBlack Chrome vs. Mirror Chrome\u003c\/h2\u003e\n\u003ctable class=\"bkc-tbl bkc-cmp\"\u003e\n\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003eBlack Chrome BCG\u003c\/th\u003e\n\u003cth\u003eMirror Chrome BCG\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eLook\u003c\/td\u003e\n\u003ctd\u003eGlossy black mirror\u003c\/td\u003e\n\u003ctd\u003eBright silver mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eCarrier, bolt, gas key\u003c\/td\u003e\n\u003ctd\u003e8620 \/ C158 \/ staked 4130\u003c\/td\u003e\n\u003ctd\u003e8620 \/ C158 \/ staked 4130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eTesting\u003c\/td\u003e\n\u003ctd\u003eMPI + HPT\u003c\/td\u003e\n\u003ctd\u003eMPI + HPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10.5 oz\u003c\/td\u003e\n\u003ctd\u003e10.5 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003eBest match\u003c\/td\u003e\n\u003ctd\u003eBlack uppers and blacked-out builds\u003c\/td\u003e\n\u003ctd\u003eContrast builds and show rifles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"bkc-k\"\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$249.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/polished-chrome-bcg\"\u003e$249.99\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cdiv class=\"bkc-cols\"\u003e\n\u003cdiv class=\"bkc-col\"\u003e\n\u003ch3\u003eFits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAR-15, M4 and M16 pattern uppers in 5.56 NATO and .223 Remington\u003c\/li\u003e\n\u003cli\u003e.300 AAC Blackout uppers that use a standard 5.56 bolt face\u003c\/li\u003e\n\u003cli\u003eMil-spec and forged receivers built to standard dimensions\u003c\/li\u003e\n\u003cli\u003eSemi-auto and full-auto profile lowers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bkc-col\"\u003e\n\u003ch3\u003eDoes not fit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAR-10 \/ .308 platforms\u003c\/li\u003e\n\u003cli\u003e9mm blowback uppers\u003c\/li\u003e\n\u003cli\u003eNon-standard or proprietary receivers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eRunning a forced reset trigger?\u003c\/strong\u003e Pair this carrier with an H2 or H3 buffer. Our \u003ca href=\"\/blogs\/blogs\/best-buffer-frt-trigger-ar15\"\u003eFRT buffer guide\u003c\/a\u003e explains which weight fits your gas system, and \u003ca href=\"\/blogs\/blogs\/m16-bcg-vs-ar15-bcg-frt-trigger\"\u003eM16 BCG vs. AR-15 BCG\u003c\/a\u003e covers why the full auto profile matters.\u003c\/p\u003e\n\n\u003ch2\u003eCare\u003c\/h2\u003e\n\u003cp\u003eClean and lube it like any BCG. Normal use leaves light wear marks where the carrier rides the receiver; that's expected, not a defect. Check that your gas system and buffer weight are matched before your first range trip.\u003c\/p\u003e\n\n\u003ch2\u003eBlack Chrome BCG FAQ\u003c\/h2\u003e\n\u003ch3\u003eIs the black chrome BCG the same as your mirror chrome BCG?\u003c\/h3\u003e\n\u003cp\u003eYes, apart from the color. It uses the same 8620 carrier, C158 bolt, staked 4130 gas key and 4140 extractor and cam pin, with the same MPI and HPT testing, weight and price. Only the finish changes, from silver mirror chrome to black mirror chrome.\u003c\/p\u003e\n\u003ch3\u003eIs black chrome the same as black nitride?\u003c\/h3\u003e\n\u003cp\u003eNo. Nitride is a heat treatment that leaves a matte black surface. This BCG is polished to a mirror and finished in high-gloss black chrome, so it looks glossy instead of flat.\u003c\/p\u003e\n\u003ch3\u003eIs this BCG M16 cut?\u003c\/h3\u003e\n\u003cp\u003eYes. It has a full auto (M16) carrier profile with a properly staked gas key, which is the profile most forced reset triggers call for.\u003c\/p\u003e\n\u003ch3\u003eWill this BCG work with a forced reset trigger?\u003c\/h3\u003e\n\u003cp\u003eYes. The full auto profile and staked gas key give an FRT consistent carrier travel. Pair it with an H2 or H3 buffer and check your trigger maker's requirements.\u003c\/p\u003e\n\u003ch3\u003eWhat calibers does it work with?\u003c\/h3\u003e\n\u003cp\u003e5.56 NATO, .223 Remington and .300 AAC Blackout uppers that use a standard 5.56 bolt face. It does not fit AR-10, .308 or 9mm blowback uppers.\u003c\/p\u003e\n\u003ch3\u003eIs this BCG made in the USA?\u003c\/h3\u003e\n\u003cp\u003eYes. It is made in the USA, and every bolt is magnetic particle inspected and high-pressure tested.\u003c\/p\u003e\n\n\u003cdiv class=\"bkc-warn\"\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e This is a semi-automatic replacement part. Forced reset trigger laws vary by state and locality, and compliance is the buyer's responsibility. See \u003ca href=\"\/pages\/are-frt-triggers-legal\"\u003eare FRT triggers legal\u003c\/a\u003e before you build.\u003c\/div\u003e\n\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cdiv class=\"bkc-links\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/ar-15-bolt-carrier-groups\"\u003eAll AR-15 bolt carrier groups\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/polished-chrome-bcg\"\u003eHighly Polished Mirror Chrome BCG\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/trigger-supply-rainbow-pvd-ar15-bcg-high-polish\"\u003eTrigger Supply Rainbow PVD BCG\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/build-your-own-disruptor-frt-combo\"\u003eBuild your own Disruptor FRT combo\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/best-frt-triggers-for-ar-15\"\u003eBest FRT triggers for the AR-15\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/blogs\/how-forced-reset-triggers-work\"\u003eHow forced reset triggers work\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/pages\/are-frt-triggers-legal\"\u003eAre FRT triggers legal?\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"bkc-fine\"\u003eCompliance with all applicable federal, state, and local laws is the buyer's sole responsibility.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    { \"@type\": \"Question\", \"name\": \"Is the black chrome BCG the same as your mirror chrome BCG?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes, apart from the color. It uses the same 8620 carrier, C158 bolt, staked 4130 gas key and 4140 extractor and cam pin, with the same MPI and HPT testing, weight and price. Only the finish changes, from silver mirror chrome to black mirror chrome.\" } },\n    { \"@type\": \"Question\", \"name\": \"Is black chrome the same as black nitride?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"No. Nitride is a heat treatment that leaves a matte black surface. This BCG is polished to a mirror and finished in high-gloss black chrome, so it looks glossy instead of flat.\" } },\n    { \"@type\": \"Question\", \"name\": \"Is this BCG M16 cut?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. It has a full auto (M16) carrier profile with a properly staked gas key, which is the profile most forced reset triggers call for.\" } },\n    { \"@type\": \"Question\", \"name\": \"Will this BCG work with a forced reset trigger?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. The full auto profile and staked gas key give an FRT consistent carrier travel. Pair it with an H2 or H3 buffer and check your trigger maker's requirements.\" } },\n    { \"@type\": \"Question\", \"name\": \"What calibers does it work with?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"5.56 NATO, .223 Remington and .300 AAC Blackout uppers that use a standard 5.56 bolt face. It does not fit AR-10, .308 or 9mm blowback uppers.\" } },\n    { \"@type\": \"Question\", \"name\": \"Is this BCG made in the USA?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. It is made in the USA, and every bolt is magnetic particle inspected and high-pressure tested.\" } }\n  ]\n}\n\u003c\/script\u003e\n\u003c\/div\u003e\n","brand":"Trigger Supply","offers":[{"title":"Default Title","offer_id":68033418068213,"sku":"BCG-BLK-CHROME","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/2282\/1621\/files\/High_Polish_Black_Chrome_5.56_AR-15_Bolt_Carrier_Group_BCG_artakedowntool.com.png?v=1794487331","url":"https:\/\/www.artakedowntool.com\/products\/polished-black-chrome-bcg","provider":"The Takedown Tools","version":"1.0","type":"link"}