{"product_id":"smith-wesson-model-4043-barrel-4-inch-40-sw-4043a","title":"Smith \u0026 Wesson Model 4043 Pistol Barrel 4\" .40 S\u0026W DAO Stainless Steel Used OEM Part 4043A","description":"\u003cp\u003eThis is a \u003cstrong\u003eused OEM barrel\u003c\/strong\u003e for the Smith \u0026amp; Wesson Model 4043 semi-automatic pistol chambered in \u003cstrong\u003e.40 S\u0026amp;W\u003c\/strong\u003e. This is a genuine factory part in \u003cstrong\u003estainless steel construction\u003c\/strong\u003e with a \u003cstrong\u003e4-inch length\u003c\/strong\u003e, designed for \u003cstrong\u003eDAO (double-action-only)\u003c\/strong\u003e operation from a third-generation Smith \u0026amp; Wesson pistol.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine Smith \u0026amp; Wesson factory part\u003c\/li\u003e\n\u003cli\u003eStainless steel construction\u003c\/li\u003e\n\u003cli\u003e4-inch barrel length\u003c\/li\u003e\n\u003cli\u003eDAO (double-action-only) configuration\u003c\/li\u003e\n\u003cli\u003eCompatible with Model 4043 .40 S\u0026amp;W pistols\u003c\/li\u003e\n\u003cli\u003eUsed condition - fully functional OEM component\u003c\/li\u003e\n\u003cli\u003ePart Number: 4043A\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003cbr\u003eThis barrel is designed specifically for the Smith \u0026amp; Wesson Model 4043, a third-generation .40 S\u0026amp;W pistol with double-action-only operation. The Model 4043 is a variant of the 4006 series with a DAO trigger system for consistent trigger pull on every shot. The four-digit model number indicates this is a 3rd generation pistol: the first digit (4) indicates .40 S\u0026amp;W caliber, the second digit (0) indicates alloy frame, and the third digit (4) indicates DAO trigger configuration. The barrel is a critical component that determines accuracy and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout the Model 4043:\u003c\/strong\u003e\u003cbr\u003eThe Smith \u0026amp; Wesson Model 4043 is a third-generation semi-automatic pistol introduced in the late 1980s\/early 1990s. It features a DAO trigger system preferred by many law enforcement agencies for its consistent trigger pull and enhanced safety. The .40 S\u0026amp;W caliber offers a balance between 9mm capacity and .45 ACP stopping power. Parts for these third-generation pistols are becoming increasingly difficult to find.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cbr\u003eThis is a used factory barrel removed from a Smith \u0026amp; Wesson Model 4043 pistol. The barrel has been inspected and is in good working condition with normal wear consistent with use. The stainless steel finish shows typical handling marks and may have some holster wear. The bore and rifling are in good condition. Used parts offer an economical solution for repairs and restorations while maintaining OEM quality and fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e\u003cbr\u003eProfessional gunsmith installation is strongly recommended for proper fitting and function. Barrel installation requires proper headspace verification and fitting to ensure safe and reliable operation. Improper installation can affect safety, accuracy, and reliability. Knowledge of Smith \u0026amp; Wesson semi-automatic pistol mechanisms is required.\u003c\/p\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":40924749856826,"sku":"4043A","price":79.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/s-l960_1_1cb75e3c-5151-4afd-9668-b117b422dff3.webp?v=1751300338","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-model-4043-barrel-4-inch-40-sw-4043a","provider":"USA Guns And Gear","version":"1.0","type":"link"}