Cross Machine Tool (CMT) is a veteran-owned American manufacturer of billet firearm components, producing its parts in-house at its Tennessee facility. The company describes its approach as “made, not merchandised”: it programs, cuts, and finishes the products on its own machines. Its catalog serves AR-15 and AR-10 builders, with receivers made from 7075-T6 billet, including lower and upper receivers, complete uppers, and receiver sets.

CMT also offers free-float handguards across its UHPR, HDM, DRT, TANO, and related lines, with options including M-LOK, quad, hybrid, and ARCA configurations. Other products include Plan B-compatible suppressor mounts, muzzle devices, gas blocks, bolt carrier groups, buffers, replacement parts, and blemished components. The company highlights receiver and rail finishes with Type III hardcoat anodizing and backs its products against manufacturing defects.

CMT provides an online product catalog, dealer accounts, OEM handguard offerings, customer support, and returns and warranty assistance. Serialized receivers ship to licensed dealers