{"product_id":"ncstar-ar-15-upper-receiver-block","title":"NcSTAR - Upper Receiver Block for AR15","description":"\u003cp\u003eThe \u003cb\u003eNcSTAR Upper Receiver Block\u003c\/b\u003e for AR15 is a versatile tool designed to facilitate various maintenance tasks on your AR15 platform. This modular block can be used in multiple configurations to support and protect your upper receiver during maintenance and assembly. Its innovative design allows you to use just the lower half of the block by attaching it quickly to the upper receiver with the two provided receiver pins, enabling you to clamp the AR upper receiver to a vise securely.\u003c\/p\u003e\u003cp\u003eFor more comprehensive support, the two halves of the block can be bolted together, fully supporting the upper receiver and preventing damage from torque twisting forces when installing or removing barrels. The upper half of the block inserts into the receiver like a bolt carrier group, while the bottom half can be bolted to it with the provided steel bolts. This configuration supports the inside and bottom of the receiver while keeping the optics rail accessible for mounting accessories. Additionally, the block features a hole through its length to serve as a bore brush guide for cleaning the barrel bore.\u003c\/p\u003e\u003cp\u003eConstructed from \u003cb\u003eblue anodized aluminum\u003c\/b\u003e, this upper receiver block offers durability and resilience. Unlike other blocks that clamp to the exterior, this design ensures a secure fit and optimal protection for your AR15 receiver.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModular design for versatile use\u003c\/li\u003e\n\u003cli\u003eQuick attachment with provided receiver pins\u003c\/li\u003e\n\u003cli\u003ePrevents damage from torque twisting forces\u003c\/li\u003e\n\u003cli\u003eSupports inside and bottom of the receiver\u003c\/li\u003e\n\u003cli\u003eKeeps optics rail open for mounting\u003c\/li\u003e\n\u003cli\u003eIncludes bore brush guide for barrel cleaning\u003c\/li\u003e\n\u003cli\u003eConstructed from blue anodized aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\n\u003cb\u003eCategory:\u003c\/b\u003e AR15 Tools\u003c\/li\u003e\u003c\/ul\u003e","brand":"NcSTAR","offers":[{"title":"Default Title","offer_id":43150288191577,"sku":"RSR-NSTARVTARUVB","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9860\/2329\/files\/ncstar_RSR-NSTARVTARUVB-1.jpg?v=1790383679","url":"https:\/\/mountainready.online\/products\/ncstar-ar-15-upper-receiver-block","provider":"mountainready.online","version":"1.0","type":"link"}