{"product_id":"trigger-supply-rainbow-pvd-ar15-bcg-high-polish","title":"Trigger Supply Rainbow PVD BCG | High Polish AR-15 Bolt Carrier Group | USA Made","description":"\u003c!-- ============================================================\n     TRIGGER SUPPLY — RAINBOW PVD HIGH POLISH AR-15 BCG\n     Price: $189.99\n     URL: \/products\/trigger-supply-rainbow-pvd-ar15-bcg-high-polish\n     Brand: Trigger Supply\n     \n     SEO STRATEGY: Owns \"rainbow PVD BCG,\" \"rainbow BCG AR-15,\"\n     \"PVD AR-15 bolt carrier group.\" Secondary: \"high polish BCG,\"\n     \"colored BCG AR-15,\" \"AR-15 BCG upgrade.\" Completely separate\n     keyword cluster from the M16 USA-made BCG at $149.99 —\n     aesthetic\/finish angle vs utility angle. Zero cannibalization.\n============================================================ --\u003e\n\n\n\u003c!-- ============ BLOCK 1: SEO FIELDS ============ --\u003e\n\u003c!--\n  PRODUCT TITLE:\n  Trigger Supply Rainbow PVD BCG | High Polish AR-15 Bolt Carrier Group | USA Made\n\n  SEO TITLE (58 chars):\n  Trigger Supply Rainbow PVD BCG | High Polish AR-15 USA\n  COUNT: 54 ✓\n\n  META DESCRIPTION (151 chars):\n  Trigger Supply Rainbow PVD AR-15 BCG. High polish finish, M16 cut, 9310 steel, Carpenter 158 bolt. Magnetic particle inspected. USA made. $189.99 in stock.\n  COUNT: 157 — trim:\n  Trigger Supply Rainbow PVD AR-15 BCG. High polish, M16 cut, Carpenter 158 bolt, MPI tested. USA made. $189.99 in stock, ships fast.\n  COUNT: 132 ✓\n\n  URL HANDLE:\n  \/products\/trigger-supply-rainbow-pvd-ar15-bcg-high-polish\n\n  SHOPIFY TAGS:\n  rainbow pvd bcg, rainbow bcg ar15, pvd bcg, pvd ar15 bcg,\n  colored bcg ar15, rainbow bolt carrier group, high polish bcg,\n  trigger supply bcg, ar15 bcg upgrade, m16 cut bcg, ar15 bolt carrier group,\n  carpenter 158 bolt, 9310 steel bcg, mpi bcg, magnetic particle inspected bcg,\n  usa made bcg ar15, ar15 parts usa made, ar15 accessories, colored ar15 parts,\n  rainbow ar15 parts, pvd finish ar15, ar15 build parts\n--\u003e\n\n\n\u003c!-- ============ BLOCK 2: SCHEMA (JSON-LD) ============ --\u003e\n\u003c!--\n  NOTE: Product schema omitted — Shopify auto-generates Product JSON-LD.\n  Adding a second Product schema causes Merchant Listings conflict.\n  FAQPage only — adds FAQ rich results without duplicating Product schema.\n\n  Paste into product description editor in HTML view.\n  OR paste into theme.liquid wrapped in:\n  {% if product.handle == 'trigger-supply-rainbow-pvd-ar15-bcg-high-polish' %}\n  ...\n  {% endif %}\n--\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is PVD finish on an AR-15 BCG?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PVD stands for Physical Vapor Deposition — a vacuum coating process that deposits an extremely thin, hard layer of material onto the surface of the BCG components. PVD produces the rainbow iridescent color effect while adding a harder, more wear-resistant surface than standard phosphate or nitride finishes. The high polish preparation before PVD gives the final finish its mirror-like reflective quality.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What steel is the bolt made from?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The bolt is machined from Carpenter 158 steel — the original mil-spec bolt steel specified by the US military for M16 and AR-15 bolts. Carpenter 158 is a chrome-moly-vanadium alloy specifically formulated for bolt lugs under the stress of repeated firing cycles. Every bolt is magnetic particle inspected (MPI) for internal defects before leaving the factory.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this BCG M16 cut?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The Trigger Supply Rainbow PVD BCG uses an M16 full auto cut carrier profile. In a semi-auto lower it functions identically to a standard BCG — the M16 cut adds mass for smoother, more reliable cycling without any legal concerns. Compatible with all mil-spec AR-15 uppers.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will the rainbow PVD finish hold up under hard use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"PVD is one of the hardest surface coatings available for firearm components — harder than phosphate and comparable to nitride. The coating is extremely thin (measured in microns) and bonds at a molecular level to the substrate steel, meaning it does not chip or peel like paint. The rainbow color will remain vibrant under normal use and cleaning. Like all BCG finishes, sustained high round counts and harsh cleaning chemicals will eventually show wear over time.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What makes this BCG different from a standard mil-spec BCG?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Three things. First, the Rainbow PVD finish — a Physical Vapor Deposition coating process that produces the iridescent color and adds a harder wear surface than standard phosphate. Second, high polished components — every surface is polished before PVD coating, giving the BCG a mirror quality that standard BCGs don't have. Third, Carpenter 158 steel bolt — the original mil-spec bolt alloy, magnetic particle inspected. Everything else — M16 cut, mil-spec gas rings, mil-spec O-ring, 4140 cam pin, 8740 firing pin — runs to standard mil-spec.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is the Trigger Supply Rainbow PVD BCG made in the USA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The Trigger Supply Rainbow PVD BCG is 100% USA made.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\n\u003c!-- ============ BLOCK 3: DESCRIPTION HTML ============ --\u003e\n\u003c!-- Paste into Shopify product description editor in HTML\/code view --\u003e\n\n\u003cdiv id=\"pw\"\u003e\n\n\u003cstyle\u003e\n  #pw { font-family: 'DM Sans', sans-serif; font-size: 15px; line-height: 1.75; }\n  #pw, #pw * { color: inherit; }\n  #pw p, #pw li, #pw td, #pw div, #pw span { color: #111111 !important; }\n  #pw h1, #pw h2, #pw h3 { color: #111111 !important; }\n  #pw strong { color: #111111 !important; }\n  #pw a { color: #b07a28 !important; text-decoration: none !important; }\n  #pw a:hover { text-decoration: underline !important; }\n\n  \/* namespace: .pvd *\/\n  #pw .pvd-badge { display: inline-block !important; background: linear-gradient(90deg, #b07a28, #8a5cb8, #2a7ab0, #2a8a4a) !important; color: #ffffff !important; font-size: 10px !important; font-weight: 700 !important; letter-spacing: .12em !important; text-transform: uppercase !important; padding: 3px 10px !important; border-radius: 2px !important; margin-bottom: 14px !important; }\n  #pw .pvd-intro { font-size: 15.5px !important; color: #111111 !important; margin-bottom: 14px !important; line-height: 1.8 !important; }\n  #pw .pvd-h2 { font-size: 17px !important; font-weight: 700 !important; color: #111111 !important; margin: 32px 0 12px !important; padding-bottom: 8px !important; border-bottom: 2px solid #dddddd !important; }\n  #pw .pvd-features { list-style: none !important; padding: 0 !important; margin: 0 0 20px !important; }\n  #pw .pvd-features li { padding: 10px 0 !important; border-bottom: 1px solid #eeeeee !important; font-size: 15px !important; color: #111111 !important; display: flex !important; gap: 10px !important; align-items: flex-start !important; line-height: 1.55 !important; }\n  #pw .pvd-features li:last-child { border-bottom: none !important; }\n  #pw .pvd-features li::before { content: '—' !important; color: #b07a28 !important; flex-shrink: 0 !important; font-weight: 700 !important; margin-top: 2px !important; }\n  #pw .pvd-steel-grid { display: grid !important; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) !important; gap: 10px !important; margin: 14px 0 24px !important; }\n  #pw .pvd-steel-item { background: #f7f7f7 !important; border: 1px solid #e4e4e4 !important; border-radius: 6px !important; padding: 13px 15px !important; }\n  #pw .pvd-steel-label { font-size: 10px !important; font-weight: 700 !important; letter-spacing: .1em !important; text-transform: uppercase !important; color: #b07a28 !important; margin-bottom: 4px !important; }\n  #pw .pvd-steel-item p { margin: 0 !important; font-size: 13px !important; color: #444444 !important; line-height: 1.5 !important; }\n  #pw .pvd-specs { width: 100% !important; border-collapse: collapse !important; margin: 12px 0 24px !important; font-size: 14px !important; }\n  #pw .pvd-specs tr { border-bottom: 1px solid #eeeeee !important; }\n  #pw .pvd-specs tr:last-child { border-bottom: none !important; }\n  #pw .pvd-specs td { padding: 10px 12px !important; color: #111111 !important; vertical-align: top !important; }\n  #pw .pvd-specs td:first-child { font-weight: 600 !important; width: 40% !important; color: #555555 !important; }\n  #pw .pvd-specs tr:nth-child(even) td { background: #f9f9f9 !important; }\n  #pw .pvd-compare { display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 12px !important; margin: 14px 0 24px !important; }\n  #pw .pvd-compare-item { background: #f7f7f7 !important; border: 1px solid #e4e4e4 !important; border-radius: 6px !important; padding: 14px 16px !important; }\n  #pw .pvd-compare-label { font-size: 10px !important; font-weight: 700 !important; letter-spacing: .1em !important; text-transform: uppercase !important; color: #b07a28 !important; margin-bottom: 6px !important; }\n  #pw .pvd-compare-item p { font-size: 13.5px !important; color: #444444 !important; margin: 0 !important; line-height: 1.5 !important; }\n  #pw .pvd-upsell { background: #fdf9f2 !important; border: 1px solid #e8d8c0 !important; border-left: 3px solid #b07a28 !important; border-radius: 0 6px 6px 0 !important; padding: 14px 18px !important; margin: 20px 0 !important; font-size: 14px !important; color: #111111 !important; }\n  #pw .pvd-upsell-label { font-size: 10px !important; font-weight: 700 !important; letter-spacing: .12em !important; text-transform: uppercase !important; color: #b07a28 !important; margin-bottom: 5px !important; }\n  #pw .pvd-upsell p { margin: 0 !important; color: #111111 !important; font-size: 14px !important; }\n  #pw .pvd-faq { margin: 12px 0 0 !important; }\n  #pw .pvd-faq-item { border-bottom: 1px solid #eeeeee !important; }\n  #pw .pvd-faq-item summary { cursor: pointer !important; list-style: none !important; padding: 14px 0 !important; font-weight: 600 !important; font-size: 14.5px !important; color: #111111 !important; display: flex !important; justify-content: space-between !important; align-items: center !important; gap: 12px !important; }\n  #pw .pvd-faq-item summary::-webkit-details-marker { display: none !important; }\n  #pw .pvd-faq-item summary::after { content: '+' !important; color: #b07a28 !important; font-size: 18px !important; font-weight: 300 !important; flex-shrink: 0 !important; }\n  #pw .pvd-faq-item[open] summary::after { content: '×' !important; }\n  #pw .pvd-faq-answer { padding: 0 0 16px !important; font-size: 14px !important; color: #444444 !important; line-height: 1.7 !important; }\n  #pw .pvd-links { list-style: none !important; padding: 0 !important; margin: 12px 0 0 !important; }\n  #pw .pvd-links li { padding: 7px 0 !important; border-bottom: 1px solid #eeeeee !important; font-size: 14px !important; }\n  #pw .pvd-links li:last-child { border-bottom: none !important; }\n  #pw .pvd-disclaimer { margin-top: 28px !important; padding-top: 16px !important; border-top: 1px solid #dddddd !important; font-size: 12.5px !important; color: #888888 !important; line-height: 1.6 !important; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"pvd-badge\"\u003eTrigger Supply · Rainbow PVD · High Polish · M16 Cut · Carpenter 158 · MPI · USA Made\u003c\/div\u003e\n\n\u003cp class=\"pvd-intro\"\u003eThe \u003cstrong\u003eTrigger Supply Rainbow PVD BCG\u003c\/strong\u003e is the build piece that makes your AR-15 stand out without sacrificing anything on reliability. Physical Vapor Deposition coating over high-polished components produces the iridescent rainbow finish — every unit catches light differently. Under that finish is a fully spec'd Carpenter 158 steel bolt, M16 cut carrier, mil-spec gas rings and O-ring, and magnetic particle inspection on every bolt before it ships.\u003c\/p\u003e\n\n\u003cp class=\"pvd-intro\"\u003eIt looks like nothing else on the market. It runs like a mil-spec BCG should.\u003c\/p\u003e\n\n\u003ch2 class=\"pvd-h2\"\u003eWhat Makes It Different\u003c\/h2\u003e\n\u003cdiv class=\"pvd-compare\"\u003e\n  \u003cdiv class=\"pvd-compare-item\"\u003e\n    \u003cdiv class=\"pvd-compare-label\"\u003eRainbow PVD Finish\u003c\/div\u003e\n    \u003cp\u003ePhysical Vapor Deposition deposits an extremely thin, molecularly bonded coating that produces the iridescent rainbow color. Harder than phosphate, does not chip or peel. The finish is applied over high-polished components — the polish is what gives the reflection, the PVD is what gives the color and durability.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-compare-item\"\u003e\n    \u003cdiv class=\"pvd-compare-label\"\u003eHigh Polished Components\u003c\/div\u003e\n    \u003cp\u003eEvery carrier and bolt surface is polished before PVD coating. The result is a mirror-quality finish that no standard BCG produces. High polish also reduces friction at contact surfaces for smoother cycling — form and function together.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2 class=\"pvd-h2\"\u003eFeatures\u003c\/h2\u003e\n\u003cul class=\"pvd-features\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRainbow PVD finish\u003c\/strong\u003e — Physical Vapor Deposition iridescent coating over high-polished components. Harder than phosphate, bonds at molecular level\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarpenter 158 steel bolt\u003c\/strong\u003e — the original mil-spec bolt alloy specified by the US military. Chrome-moly-vanadium formulated specifically for bolt lugs under repeated firing stress\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMagnetic particle inspected (MPI)\u003c\/strong\u003e — every bolt inspected for internal defects before leaving the factory. The most reliable non-destructive testing method for bolt integrity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eM16 full auto cut carrier\u003c\/strong\u003e — heavier carrier profile for smoother, more reliable cycling. Functions as standard semi-auto in any mil-spec lower\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMil-spec gas rings\u003c\/strong\u003e — standard mil-spec gas ring set for consistent gas seal and reliable cycling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMil-spec O-ring\u003c\/strong\u003e — standard mil-spec O-ring for gas retention\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8740 steel firing pin — hard chrome finish\u003c\/strong\u003e — high-strength firing pin alloy with hard chrome plating for long-term durability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4140 steel cam pin and extractor\u003c\/strong\u003e — standard mil-spec alloys for both components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% USA made\u003c\/strong\u003e — all components manufactured domestically\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"pvd-h2\"\u003eComponent Steel Breakdown\u003c\/h2\u003e\n\u003cdiv class=\"pvd-steel-grid\"\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eCarrier\u003c\/div\u003e\n    \u003cp\u003e9310 Steel — Rainbow PVD finish over high polish\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eBolt\u003c\/div\u003e\n    \u003cp\u003eCarpenter 158 Steel — MPI tested, Rainbow PVD finish\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eFiring Pin\u003c\/div\u003e\n    \u003cp\u003e8740 Steel — hard chrome finish\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eCam Pin\u003c\/div\u003e\n    \u003cp\u003e4140 Steel — mil-spec\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eExtractor\u003c\/div\u003e\n    \u003cp\u003e4140 Steel — mil-spec\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eGas Rings\u003c\/div\u003e\n    \u003cp\u003eMil-spec — standard ring set\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"pvd-steel-item\"\u003e\n    \u003cdiv class=\"pvd-steel-label\"\u003eO-Ring\u003c\/div\u003e\n    \u003cp\u003eMil-spec\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2 class=\"pvd-h2\"\u003eFull Specs\u003c\/h2\u003e\n\u003ctable class=\"pvd-specs\"\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003e.223 Rem \/ 5.56 NATO\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCarrier Profile\u003c\/td\u003e\n\u003ctd\u003eM16 Full Auto Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eRainbow PVD over High Polish\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCarrier Material\u003c\/td\u003e\n\u003ctd\u003e9310 Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBolt Material\u003c\/td\u003e\n\u003ctd\u003eCarpenter 158 Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eExtractor Material\u003c\/td\u003e\n\u003ctd\u003e4140 Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCam Pin Material\u003c\/td\u003e\n\u003ctd\u003e4140 Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFiring Pin Material\u003c\/td\u003e\n\u003ctd\u003e8740 Steel — Hard Chrome Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eGas Rings\u003c\/td\u003e\n\u003ctd\u003eMil-Spec\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eO-Ring\u003c\/td\u003e\n\u003ctd\u003eMil-Spec\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInspection\u003c\/td\u003e\n\u003ctd\u003eMagnetic Particle Inspected (MPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003eAR-15 — all mil-spec uppers\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003e100% USA Made\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cdiv class=\"pvd-upsell\"\u003e\n  \u003cdiv class=\"pvd-upsell-label\"\u003eLooking for Utility Over Aesthetics?\u003c\/div\u003e\n  \u003cp\u003eThe \u003ca href=\"https:\/\/www.artakedowntool.com\/products\/trigger-supply-m16-full-auto-cut-bcg-usa-made\"\u003eTrigger Supply M16 Full Auto Cut BCG ($149.99)\u003c\/a\u003e is the workhorse option — same M16 cut, USA made, built specifically for FRT builds. The \u003ca href=\"https:\/\/www.artakedowntool.com\/products\/kak-industry-dbc-k-spec-bcg-frt-ar15\"\u003eKAK Industry DBC K-SPEC BCG ($199.99)\u003c\/a\u003e is the first BCG engineered specifically for forced reset triggers with a patented dead-blow weight system.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 class=\"pvd-h2\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"pvd-faq\"\u003e\n\n  \u003cdetails class=\"pvd-faq-item\"\u003e\n    \u003csummary\u003eWhat is PVD finish on an AR-15 BCG?\u003c\/summary\u003e\n    \u003cdiv class=\"pvd-faq-answer\"\u003ePVD stands for Physical Vapor Deposition — a vacuum coating process that deposits an extremely thin, hard layer of material onto the surface of the BCG. PVD produces the rainbow iridescent color while adding a harder, more wear-resistant surface than standard phosphate or nitride. The high polish preparation before PVD gives the finish its mirror-like reflective quality.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails class=\"pvd-faq-item\"\u003e\n    \u003csummary\u003eWhat steel is the bolt made from?\u003c\/summary\u003e\n    \u003cdiv class=\"pvd-faq-answer\"\u003eCarpenter 158 steel — the original mil-spec bolt alloy specified by the US military for M16 and AR-15 bolts. It is a chrome-moly-vanadium alloy specifically formulated for bolt lug stress under repeated firing cycles. Every bolt is magnetic particle inspected (MPI) for internal defects before leaving the factory.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails class=\"pvd-faq-item\"\u003e\n    \u003csummary\u003eIs this BCG M16 cut?\u003c\/summary\u003e\n    \u003cdiv class=\"pvd-faq-answer\"\u003eYes. M16 full auto cut carrier profile. In a semi-auto lower it functions identically to a standard BCG — the M16 cut adds mass for smoother, more reliable cycling. Compatible with all mil-spec AR-15 uppers. Legal in all 50 states in semi-auto builds.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails class=\"pvd-faq-item\"\u003e\n    \u003csummary\u003eWill the rainbow PVD finish hold up under hard use?\u003c\/summary\u003e\n    \u003cdiv class=\"pvd-faq-answer\"\u003ePVD is one of the hardest surface coatings available for firearm components — harder than phosphate and comparable to nitride. It bonds at a molecular level and does not chip or peel like paint. The rainbow color remains vibrant under normal use and cleaning. Like all BCG finishes, sustained high round counts and harsh cleaning chemicals will show wear over time.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails class=\"pvd-faq-item\"\u003e\n    \u003csummary\u003eWhat makes this different from a standard mil-spec BCG?\u003c\/summary\u003e\n    \u003cdiv class=\"pvd-faq-answer\"\u003eThree things: Rainbow PVD finish over high-polished components, Carpenter 158 steel bolt (the original mil-spec alloy), and magnetic particle inspection on every bolt. Everything else — M16 cut, mil-spec gas rings, mil-spec O-ring, 4140 cam pin, 8740 firing pin — runs to standard mil-spec tolerances.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails class=\"pvd-faq-item\"\u003e\n    \u003csummary\u003eIs this made in the USA?\u003c\/summary\u003e\n    \u003cdiv class=\"pvd-faq-answer\"\u003eYes. 100% USA made.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003ch2 class=\"pvd-h2\"\u003eRelated Products\u003c\/h2\u003e\n\u003cul class=\"pvd-links\"\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.artakedowntool.com\/products\/trigger-supply-m16-full-auto-cut-bcg-usa-made\"\u003eTrigger Supply M16 Full Auto Cut BCG — USA Made ($149.99)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.artakedowntool.com\/products\/kak-industry-dbc-k-spec-bcg-frt-ar15\"\u003eKAK Industry DBC K-SPEC BCG — First FRT BCG ($199.99)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.artakedowntool.com\/products\/trigger-supply-ar15-anti-walk-pins\"\u003eTrigger Supply AR-15 Anti-Walk Pins ($24.99)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.artakedowntool.com\/collections\/ar-15-buffers\"\u003eAR-15 Buffers — H2, H2.5, H3 for FRT Builds\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.artakedowntool.com\/pages\/best-frt-triggers-for-ar-15\"\u003eBest FRT Triggers for AR-15 — 2026 Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp class=\"pvd-disclaimer\"\u003eIt is the buyer's responsibility to comply with all applicable local, state, and federal laws regarding firearm parts and accessories. Install by a qualified individual familiar with AR-15 platforms. Trigger Supply is a brand of TTT Innovations. 100% USA made.\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Trigger Supply","offers":[{"title":"Default Title","offer_id":48741268586741,"sku":"PVD-BCG","price":189.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/2282\/1621\/files\/bcg-pvd3-298x300.jpg?v=1784580834","url":"https:\/\/www.artakedowntool.com\/products\/trigger-supply-rainbow-pvd-ar15-bcg-high-polish","provider":"The Takedown Tools","version":"1.0","type":"link"}