{"product_id":"lug-lok-upper-vise-block-ar15","title":"Lug-Lok® Upper Vise Block — AR15 Barrel-Lug Workholding","description":"\u003cp\u003eAn advanced AR15 upper receiver vise block engineered to clamp against the strongest part of the rifle — the barrel lugs inside the star chamber — instead of crushing the outer receiver. Precision-machined from aircraft-grade aluminum to fit all Mil-Spec uppers, the Lug-Lok delivers safer, more secure workholding for high-torque tasks.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStar chamber locking lugs engage the strongest internal geometry of the receiver\u003c\/li\u003e\n\u003cli\u003ePrecision-machined 7075-T6 aircraft-grade aluminum construction\u003c\/li\u003e\n\u003cli\u003eTwo stainless steel vise pins lock the upper at multiple working angles\u003c\/li\u003e\n\u003cli\u003eUpper Receiver Lock Knob retains Lug-Lok in the barrel lugs under torque\u003c\/li\u003e\n\u003cli\u003eAlignment flange for fast, repeatable positioning\u003c\/li\u003e\n\u003cli\u003eCompatible with all Mil-Spec AR15 upper receivers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngineering Advantage\u003c\/h3\u003e\u003cp\u003eTraditional clamp-style upper blocks exert inward pressure on the receiver — enough to deform anodized aluminum when applying torque to a barrel nut or flash hider. The Lug-Lok routes that force through the barrel lugs, eliminating crushing and marring while delivering the rotational lockup needed for high-torque operations.\u003c\/p\u003e\u003ch3\u003eCritical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTorquing barrel nuts\u003c\/li\u003e\n\u003cli\u003eChanging flash suppressors and muzzle devices\u003c\/li\u003e\n\u003cli\u003eInstalling handguards\u003c\/li\u003e\n\u003cli\u003eMounting Picatinny rail accessories\u003c\/li\u003e\n\u003cli\u003eBuild and customization workflows\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesigned For\u003c\/h3\u003e\u003cp\u003eAR15 builders and gunsmiths who refuse to risk receiver damage during high-torque bench work. The safest and smartest way to lock down an AR15 upper.\u003c\/p\u003e","brand":"HCC Tactical","offers":[{"title":"Black","offer_id":50592227557622,"sku":"AVIDAVAR15LLVB","price":105.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/6812\/3638\/files\/217421202.jpg?v=1778390796","url":"https:\/\/cleanboreco.com\/products\/lug-lok-upper-vise-block-ar15","provider":"Clean Bore Co","version":"1.0","type":"link"}