{"product_id":"arisaka-zero-rtn-clmp-spear-lt-std","title":"Arisaka Defense - MCX Zero Retention Clamp for Spear LT","description":"\u003cp\u003eThe \u003cb\u003eArisaka Zero Retention Clamp (ZRC)\u003c\/b\u003e is a patented solution designed to significantly reduce zero shift for lasers and iron sights mounted on the handguard of the MCX Virtus and Spear LT rifles. This version is specifically tailored for the MCX Virtus chambered in 5.56 and 300BLK, as well as the Spear LT chambered in 5.56, 7.62x39, and 300BLK. Note that the Rattler and Canebrake models are not supported.\u003c\/p\u003e\u003cp\u003eThe MCX Virtus and Spear LT handguards are known to flex under pressure, which can cause a shift in zero for mounted accessories. The Arisaka ZRC addresses this issue by using exterior clamps that thread into a special U-bracket, securing the handguard tightly to the upper receiver across two axes. This design preserves the free-floated barrel by ensuring the U-bracket does not contact the barrel or gas system.\u003c\/p\u003e\u003cp\u003eConstructed from CNC machined 6061-T651 aluminum with a MIL-A-8625 Type III hard coat black anodized finish, the ZRC clamps are contoured to minimize interference with hand placement on the handguard. Arisaka emphasizes the importance of proper installation to avoid damage, and the ZRC must be removed before taking off the handguard.\u003c\/p\u003e\u003cp\u003eThis product is proudly made in the USA and is protected by multiple U.S. patents.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCompatibility:\u003c\/b\u003e MCX Virtus 5.56\/300BLK and Spear LT 5.56\/7.62x39\/300BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e CNC machined 6061-T651 aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e MIL-A-8625 Type III hard coat black anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 1 oz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesign:\u003c\/b\u003e Reduces zero shift for handguard-mounted accessories\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInstallation:\u003c\/b\u003e Must be removed before handguard removal\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePatents:\u003c\/b\u003e Covered by U.S. Patent No(s). D1024737, D1028159, D1051277\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 1 oz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel:\u003c\/b\u003e MCX Zero Retention Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOption:\u003c\/b\u003e Spear LT Standard Handguard\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arisaka Defense","offers":[{"title":"Default Title","offer_id":44876537757785,"sku":"RSR-ARSZRC-SPEAR-LT","price":51.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/arisaka_RSR-ARSZRC-SPEAR-LT-1.jpg?v=1790394563","url":"https:\/\/mountainready.online\/products\/arisaka-zero-rtn-clmp-spear-lt-std","provider":"mountainready.online","version":"1.0","type":"link"}