{"product_id":"hk-universal-lem-kit-hk45-usp-fs","title":"Heckler \u0026 Koch Universal LEM Kit – HK45 \u0026 USP Full-Size","description":"\u003cp\u003eThe Heckler \u0026amp; Koch Universal LEM Kit converts standard double-action\/single-action HK45 and USP full-size pistols to the Law Enforcement Modification (LEM) trigger system. LEM delivers a consistent, smooth trigger pull for every shot—no manual decocking required. The system automatically resets the hammer to a partially cocked position after each firing cycle, providing a lighter, more predictable pull than traditional DA while maintaining the safety of a hammer-down carry. This conversion is popular among duty users and competitive shooters who prioritize trigger consistency and speed.\u003c\/p\u003e\u003cp\u003eThis factory kit includes all necessary internal components for a complete conversion. Installation requires disassembly of the pistol's fire control group and familiarity with the platform's internals. Professional installation by a qualified gunsmith is recommended unless you have prior experience with pistol trigger systems. All parts are manufactured to factory specifications with proper heat treatment and finish.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Trigger System Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e HK45 Full-Size, USP Full-Size (9mm, .40 S\u0026amp;W, .45 ACP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel (internal components)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Factory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Professional Recommended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Complete LEM trigger components and springs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Heckler \u0026 Koch","offers":[{"title":"Default Title","offer_id":47938180415743,"sku":"HK260204","price":108.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2884563.jpg?v=1766506809","url":"https:\/\/doublestackstore.com\/products\/hk-universal-lem-kit-hk45-usp-fs","provider":"Double Stack Store","version":"1.0","type":"link"}