Product DescriptionThe NcSTAR AR-10 Upper Receiver Block is a modular two-piece vise block engineered to securely support AR-10 (7.62x51 / .308) upper receivers for assembly, maintenance, and barrel installation. The upper half inserts into the receiver like a bolt carrier group, while the lower half bolts together to fully support the receiver and help prevent damage from torque twisting forces. A through-hole doubles as a bore brush guide for efficient barrel cleaning. Constructed from aluminum with a durable blue anodized finish, this tool provides a stable platform while keeping the optics rail accessible for mounting accessories.Product HighlightsFully supports AR-10 upper receiver to reduce torque-related damage during barrel workTwo-piece design: upper half inserts like a BCG; halves bolt together for a secure fitIntegrated bore brush guide for straightforward barrel cleaningBlue anodized aluminum construction; weighs 29.0 ozDimensions: 8.4" L x 3.1" H x 2.0" D; keeps optics rail openSpecsCompatibility: AR-10 upper receivers (7.62x51 / .308)Material: AluminumFinish: Blue anodizedDimensions: 8.4 in L x 3.1 in H x 2.0 in DWeight: 29.0 ozUPC: 848754012654Manufacturer Part Number: VTHAR10UVBBrand: NcSTARDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.