{"product_id":"smith-wesson-model-745-45-acp-rear-sight-body-fixed-oem-103840000","title":"Smith \u0026 Wesson Model 745 .45 ACP Rear Sight Body Fixed — New OEM Part 103840000","description":"\u003ch2\u003eSmith \u0026amp; Wesson Model 745 .45 ACP Rear Sight Body (Fixed) — New OEM Factory Part\u003c\/h2\u003e\n\u003cp\u003eFactory new OEM fixed rear sight body for the Smith \u0026amp; Wesson Model 745, a 2nd generation .45 ACP target pistol. This genuine S\u0026amp;W replacement part (part #103840000) provides a stable, non-adjustable sight picture optimized for consistent target shooting. Replacing a damaged or missing rear sight body restores proper sight alignment and accuracy.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 103840000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Smith \u0026amp; Wesson\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 745 (2nd Generation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e .45 ACP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Rear Sight Body (Fixed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSight Type:\u003c\/strong\u003e Fixed, non-adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Factory New OEM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eModel Compatibility Chart\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"border-bottom:2px solid #ddd;\"\u003e\n\u003cth style=\"text-align:left; padding:8px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px;\"\u003eGeneration\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px;\"\u003eCaliber\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px;\"\u003eSight Type\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px;\"\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 745\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2nd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eFixed\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e✓ Compatible — listed model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 645\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2nd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eFixed\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e✓ Likely compatible — same platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 4506\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3rd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVariable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e⚠ Verify fit — 3rd gen redesign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 4513 \/ 4516\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3rd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVariable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e⚠ Verify fit — 3rd gen redesign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 4526 \/ 4536 \/ 4546\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3rd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVariable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e⚠ Verify fit — 3rd gen redesign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 4566 \/ 4576\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3rd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVariable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e⚠ Verify fit — 3rd gen redesign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 4583 \/ 4586\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3rd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e.45 ACP\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVariable\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e⚠ Verify fit — 3rd gen redesign\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 39 \/ 439 \/ 539 \/ 639\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1st\/2nd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e9mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e✗ Not compatible — 9mm platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom:1px solid #eee;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eModel 5904 \/ 5906 \/ 5903\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3rd Gen\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e9mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e✗ Not compatible — 9mm platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis listing is for the rear sight body only.\u003c\/strong\u003e Sight blade, screws, springs, and associated parts are sold separately.\u003c\/li\u003e\n\u003cli\u003eThe Model 745 is a 2nd generation .45 ACP target pistol based on the Model 645 platform. Parts interchangeability with 3rd generation .45 ACP models is not guaranteed due to sight dovetail and design changes.\u003c\/li\u003e\n\u003cli\u003eThis is a \u003cstrong\u003efixed\u003c\/strong\u003e rear sight body (non-adjustable). It is not interchangeable with adjustable rear sight assemblies.\u003c\/li\u003e\n\u0026gt;li\u0026gt;Sight installation may require fitting. A qualified gunsmith is recommended for proper installation and zero verification.\n\u003cli\u003eAll Smith \u0026amp; Wesson factory parts are subject to availability and may require backorder processing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Smith \u0026 Wesson","offers":[{"title":"Default Title","offer_id":40140501647418,"sku":"103840000","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1423\/2020\/files\/DSC09013_167311f6-b852-40b6-a66f-614dbbb45f7b.jpg?v=1699912503","url":"https:\/\/usagunsandgear.com\/products\/smith-wesson-model-745-45-acp-rear-sight-body-fixed-oem-103840000","provider":"USA Guns And Gear","version":"1.0","type":"link"}