{"product_id":"smith-wesson-model-43-airweight-j-frame-barrel-3-5-pinned-blue-steel-22lr-16-43-b","title":"Smith \u0026 Wesson Model 43 Airweight J Frame Barrel 3.5\" Pinned Blue Steel .22 LR, Part# 16-43-B","description":"\u003ch2\u003eSmith \u0026amp; Wesson Model 43 Airweight Barrel 3.5\" Pinned – Part# 16-43-B\u003c\/h2\u003e\u003cp\u003eThis is a genuine factory Smith \u0026amp; Wesson 3.5\" pinned barrel for the J Frame Model 43 (.22\/.32 Kit Gun Airweight) revolver chambered in .22 Long Rifle. A used blue steel barrel in serviceable condition — a hard-to-find component for restoring or maintaining an original-configuration Model 43 Airweight.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePinned barrel note:\u003c\/strong\u003e Smith \u0026amp; Wesson used pinned barrels on revolvers produced prior to approximately 1982. The barrel pin passes through the frame and barrel to secure the barrel in place. Pinned barrels are highly sought after by collectors and restorers seeking to maintain period-correct configuration. This barrel is the correct replacement for pre-1982 Model 43 Airweight revolvers.\u003c\/p\u003e\u003ch3\u003ePart Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 16-43-B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Name:\u003c\/strong\u003e Barrel, 3.5\" Pinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 3.5\" (3 1\/2\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Blue Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used, factory original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e J Frame (Airweight — alloy frame)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .22 Long Rifle (rimfire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Pinned (pre-1982 style)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eModel Compatibility\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eCaliber\u003c\/th\u003e\n\u003cth\u003eFrame\u003c\/th\u003e\n\u003cth\u003eBarrel Config\u003c\/th\u003e\n\u003cth\u003eCompatible\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 43 Airweight (.22\/.32 Kit Gun) — Pre-1982\u003c\/td\u003e\n\u003ctd\u003e.22 LR (rimfire)\u003c\/td\u003e\n\u003ctd\u003eJ Frame Alloy\u003c\/td\u003e\n\u003ctd\u003ePinned\u003c\/td\u003e\n\u003ctd\u003e✅ Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 43 Airweight — Post-1982\u003c\/td\u003e\n\u003ctd\u003e.22 LR (rimfire)\u003c\/td\u003e\n\u003ctd\u003eJ Frame Alloy\u003c\/td\u003e\n\u003ctd\u003eNon-pinned\u003c\/td\u003e\n\u003ctd\u003e❌ Different barrel configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 34 (.22\/.32 Kit Gun) — Pre-1982\u003c\/td\u003e\n\u003ctd\u003e.22 LR (rimfire)\u003c\/td\u003e\n\u003ctd\u003eJ Frame Steel\u003c\/td\u003e\n\u003ctd\u003ePinned\u003c\/td\u003e\n\u003ctd\u003e⚠️ Verify fitment — different frame material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 63\u003c\/td\u003e\n\u003ctd\u003e.22 LR (rimfire)\u003c\/td\u003e\n\u003ctd\u003eJ Frame Stainless\u003c\/td\u003e\n\u003ctd\u003eNon-pinned\u003c\/td\u003e\n\u003ctd\u003e❌ Different finish \u0026amp; barrel config\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel 36 \/ 37 \/ 38 — Pre-1982\u003c\/td\u003e\n\u003ctd\u003e.38 Special\u003c\/td\u003e\n\u003ctd\u003eJ Frame\u003c\/td\u003e\n\u003ctd\u003ePinned\u003c\/td\u003e\n\u003ctd\u003e❌ Different caliber — barrel bore not compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eK \/ L \/ N Frame\u003c\/td\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003eLarger frames\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e❌ Different frame size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eNote: Barrels are caliber-specific — a .22 LR barrel cannot be used with centerfire calibers. This is a pinned barrel for pre-1982 production revolvers only — it is not compatible with post-1982 non-pinned frame configurations. The Model 43 Airweight uses an alloy (aluminum) frame. Always confirm your revolver's production date and barrel configuration before ordering. Model numbers are stamped on the frame behind the yoke when the cylinder is swung out.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003eBarrel replacement on a pinned S\u0026amp;W revolver requires removal of the barrel pin, proper barrel timing, and cylinder gap verification. This is a gunsmith-level task — we strongly recommend installation by a qualified gunsmith experienced with vintage S\u0026amp;W revolvers to ensure correct headspace, timing, and safe function.\u003c\/p\u003e\u003cp\u003eQuestions about fitment or production date? Call or email us — we're happy to help.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":40804625514554,"sku":"16-43-B","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC06539.jpg?v=1741622860","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-model-43-airweight-j-frame-barrel-3-5-pinned-blue-steel-22lr-16-43-b","provider":"USA Guns And Gear","version":"1.0","type":"link"}