{"product_id":"holosun-510c-spacer-lower-1-3-co-witness-riser-for-hs510c","title":"Holosun 510C-Spacer Lower 1\/3 Co-Witness Riser for HS510C","description":"\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor HS510C \/ HE510C\u003c\/strong\u003e – Riser spacer designed for the Holosun 510C series open reflex rifle sight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower 1\/3 Co-Witness\u003c\/strong\u003e – Raises the optic from absolute co-witness to a lower 1\/3 co-witness height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup Iron Sight Clearance\u003c\/strong\u003e – Provides additional height for use with AR-height backup iron sights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC-Machined Aluminum\u003c\/strong\u003e – Aircraft-grade aluminum construction balances strength and low weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard-Anodized Finish\u003c\/strong\u003e – Corrosion- and wear-resistant coating built for hard use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Fit\u003c\/strong\u003e – Installs between the 510C base and the Picatinny rail using the included longer hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eThe Holosun 510C-Spacer is a riser that fits under the Holosun HS510C \/ HE510C open reflex rifle sight. It lifts the optic from its standard absolute co-witness height up to a lower 1\/3 co-witness height, giving you a heads-up sight picture and room for AR-height backup iron sights.\u003c\/p\u003e\u003cp\u003eMachined from aircraft-grade aluminum with a protective hard-anodized finish, the spacer installs between the 510C base and the Picatinny rail. The required longer mounting hardware is included.\u003c\/p\u003e\u003cdetails style=\"max-width:640px;margin:2rem 0 1.5rem -9px\"\u003e\u003csummary style=\"display:flex;justify-content:space-between;align-items:center;cursor:pointer;list-style:none;border:1px solid #999999;border-radius:6px;padding:12px 16px 12px 8px\"\u003e\u003ch3 style=\"margin:0;text-transform:uppercase\"\u003eSpecifications\u003c\/h3\u003e\n\u003cspan style=\"font-size:0.7em\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\u003ctable style=\"border-collapse:collapse;width:100%;max-width:640px;border:2px solid #333333;margin-top:0.75rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"border:1px solid #333333;padding:8px;background:#333333;color:#ffffff;font-weight:bold\"\u003eCOMPATIBILITY \u0026amp; FITMENT\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px;width:45%\"\u003eFits Optics\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px\"\u003eHolosun HS510C \/ HE510C series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px\"\u003eResulting Height\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px\"\u003eLower 1\/3 co-witness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"border:1px solid #333333;padding:8px;background:#333333;color:#ffffff;font-weight:bold\"\u003eCONSTRUCTION\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px;width:45%\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px\"\u003eAircraft-grade aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #777777;padding:8px\"\u003eHard-anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/details\u003e\u003ch2\u003ePackage Includes\u003c\/h2\u003e\u003cul style=\"list-style:none;padding-left:0\"\u003e\n\u003cli style=\"padding:4px 0\"\u003e\n\u003cspan style=\"color:#2e7d32;font-weight:bold;font-size:1.2em;margin-right:8px\"\u003e✓\u003c\/span\u003e1x 510C-Spacer Riser\u003c\/li\u003e\n\u003cli style=\"padding:4px 0\"\u003e\n\u003cspan style=\"color:#2e7d32;font-weight:bold;font-size:1.2em;margin-right:8px\"\u003e✓\u003c\/span\u003eExtended Mounting Hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Holosun","offers":[{"title":"Default Title","offer_id":42447388901422,"sku":"HOLOSUN-510C-SPACER","price":19.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0022\/0856\/3246\/files\/69a7735395e6aca41d0bb7e3_holosun-510c-spacer-small-800x800.webp?v=1781820166","url":"https:\/\/freedomusasales.com\/products\/holosun-510c-spacer-lower-1-3-co-witness-riser-for-hs510c","provider":"Freedom USA Sales","version":"1.0","type":"link"}