{"product_id":"smith-wesson-model-39-2-hammer-stirrup-assembly-oem-part-3919a-9mm","title":"Smith \u0026 Wesson Model 39-2 Hammer \u0026 Stirrup Assembly - OEM Part 3919A | 9mm","description":"\u003cdiv class=\"premium-product-page\"\u003e\n\u003cdiv class=\"hero-section\"\u003e\n\u003ch1\u003eSmith \u0026amp; Wesson Model 39-2 Hammer \u0026amp; Stirrup Assembly\u003c\/h1\u003e\n\u003cp class=\"part-number\"\u003e\u003cstrong\u003eOEM Part #3919A\u003c\/strong\u003e | Genuine Factory Component\u003c\/p\u003e\n\u003cp class=\"condition-badge\"\u003eQuality Used - Inspected \u0026amp; Tested\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"key-benefits\"\u003e\n\u003ch2\u003eWhy Choose This OEM Hammer Assembly?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentic Smith \u0026amp; Wesson Factory Part\u003c\/strong\u003e - Not an aftermarket substitute. Guaranteed genuine OEM component manufactured to S\u0026amp;W's exact specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Inspected\u003c\/strong\u003e - Each hammer and stirrup assembly is carefully examined for wear, damage, and proper function before listing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Engineered\u003c\/strong\u003e - Factory tolerances ensure proper fit, timing, and reliable ignition in your Model 39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue Steel Finish\u003c\/strong\u003e - Traditional factory finish matches original specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Assembly\u003c\/strong\u003e - Includes both hammer and stirrup components as a matched set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-section\"\u003e\n\u003ch2\u003eCompatibility \u0026amp; Fitment\u003c\/h2\u003e\n\u003ch3\u003e✓ Confirmed Compatible Models:\u003c\/h3\u003e\n\u003ctable class=\"compatibility-table\" style=\"width: 100%; height: 39.1876px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 34.0848%; height: 19.5938px;\"\u003eModel Series\u003c\/th\u003e\n\u003cth style=\"width: 43.0804%; height: 19.5938px;\"\u003eSpecific Variants\u003c\/th\u003e\n\u003cth style=\"width: 18.9062%; height: 19.5938px;\"\u003eCaliber\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0848%; height: 19.5938px;\"\u003eModel 39-2\u003c\/td\u003e\n\u003ctd style=\"width: 43.0804%; height: 19.5938px;\"\u003e39-2\u003c\/td\u003e\n\u003ctd style=\"width: 18.9062%; height: 19.5938px;\"\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"compatibility-note\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This part is specifically designed for Model 39 series pistols. Not compatible with other S\u0026amp;W models. Verify your model number before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-details\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Smith \u0026amp; Wesson\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3919A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Used - Functionally Tested\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Blue Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponents:\u003c\/strong\u003e Hammer \u0026amp; Stirrup Assembly (Complete)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Critical firing mechanism component\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-treated steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"differentiators\"\u003e\n\u003ch2\u003eWhat Sets This Part Apart\u003c\/h2\u003e\n\u003cdiv class=\"differentiator-grid\"\u003e\n\u003cdiv class=\"diff-item\"\u003e\n\u003ch3\u003e🔍 Genuine OEM Quality\u003c\/h3\u003e\n\u003cp\u003eFactory Smith \u0026amp; Wesson part, not a reproduction. Ensures exact fit and proper timing for safe, reliable operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"diff-item\"\u003e\n\u003ch3\u003e✅ Pre-Inspected\u003c\/h3\u003e\n\u003cp\u003eEvery part is visually and functionally inspected. We only sell components that meet our quality standards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"diff-item\"\u003e\n\u003ch3\u003e💰 Value Pricing\u003c\/h3\u003e\n\u003cp\u003eQuality used OEM parts at a fraction of new retail cost. Perfect for restoration projects and repairs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"diff-item\"\u003e\n\u003ch3\u003e📦 Fast Shipping\u003c\/h3\u003e\n\u003cp\u003eIn-stock parts ship quickly from our US facility. Get your Model 39 back in action faster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"target-customer\"\u003e\n\u003ch2\u003ePerfect For:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGunsmiths\u003c\/strong\u003e - Reliable OEM replacement parts for customer repairs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollectors\u003c\/strong\u003e - Authentic factory components for restoration projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel 39 Owners\u003c\/strong\u003e - Direct replacement for worn or damaged hammer assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmorers\u003c\/strong\u003e - Quality spare parts for maintaining vintage S\u0026amp;W pistols\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"installation-section\"\u003e\n\u003ch2\u003eInstallation \u0026amp; Safety Information\u003c\/h2\u003e\n\u003cp class=\"warning\"\u003e\u003cstrong\u003e⚠️ Professional Installation Recommended\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hammer and stirrup assembly is a critical safety component that directly affects your firearm's firing mechanism. Improper installation can result in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFailure to fire or unreliable ignition\u003c\/li\u003e\n\u003cli\u003eIncorrect hammer timing\u003c\/li\u003e\n\u003cli\u003ePotential safety hazards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWe strongly recommend professional gunsmith installation\u003c\/strong\u003e to ensure proper fit, timing, and safe operation. Installation requires specialized tools and knowledge of S\u0026amp;W internal mechanisms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"condition-details\"\u003e\n\u003ch2\u003eAbout \"Used\" Condition\u003c\/h2\u003e\n\u003cp\u003eOur used parts are carefully sourced from decommissioned firearms and thoroughly inspected. Each component is evaluated for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStructural integrity (no cracks, breaks, or excessive wear)\u003c\/li\u003e\n\u003cli\u003eProper dimensions and tolerances\u003c\/li\u003e\n\u003cli\u003eFunctional surfaces (engagement points, pivot holes)\u003c\/li\u003e\n\u003cli\u003eOverall condition suitable for reliable service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhile these parts show normal signs of previous use, they are fully functional and ready for installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"why-usa-guns\"\u003e\n\u003ch2\u003eWhy Buy From USA Guns and Gear?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialization:\u003c\/strong\u003e We focus exclusively on authentic Smith \u0026amp; Wesson OEM parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Standards:\u003c\/strong\u003e Every part is inspected before listing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert Knowledge:\u003c\/strong\u003e Deep understanding of S\u0026amp;W pistol and revolver platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Support:\u003c\/strong\u003e Knowledgeable team to help with compatibility questions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Fulfillment:\u003c\/strong\u003e Quick shipping from our US warehouse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: Is this a genuine Smith \u0026amp; Wesson factory part?\u003c\/h3\u003e\n\u003cp\u003eA: Yes, this is an authentic OEM part manufactured by Smith \u0026amp; Wesson, not an aftermarket reproduction.\u003c\/p\u003e\n\u003ch3\u003eQ: Will this fit my Model 39?\u003c\/h3\u003e\n\u003cp\u003eA: This part is designed specifically for Model 39 and 39-2 pistols in 9mm. Please verify your exact model before ordering.\u003c\/p\u003e\n\u003ch3\u003eQ: What does \"used\" condition mean?\u003c\/h3\u003e\n\u003cp\u003eA: Used parts have been removed from decommissioned firearms and show normal wear from previous use, but are fully functional and inspected for quality.\u003c\/p\u003e\n\u003ch3\u003eQ: Can I install this myself?\u003c\/h3\u003e\n\u003cp\u003eA: While mechanically inclined individuals may be able to install this part, we strongly recommend professional gunsmith installation due to the critical nature of the firing mechanism.\u003c\/p\u003e\n\u003ch3\u003eQ: Do you offer returns?\u003c\/h3\u003e\n\u003cp\u003eA: Please review our return policy. Contact us before ordering if you have specific compatibility concerns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cta-section\"\u003e\n\u003cp class=\"stock-notice\"\u003e\u003cstrong\u003eLimited Availability:\u003c\/strong\u003e Vintage S\u0026amp;W parts are increasingly difficult to source. Order now while in stock.\u003c\/p\u003e\n\u003cp class=\"trust-badge\"\u003e🔒 Secure Checkout | 📦 Fast US Shipping | ✉️ Expert Support\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":41485121585210,"sku":"3919A","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC07825.jpg?v=1782153249","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-model-39-2-hammer-stirrup-assembly-oem-part-3919a-9mm","provider":"USA Guns And Gear","version":"1.0","type":"link"}