The Primary Weapons Systems .308 SHIM SET is an AR-308 compatible shim kit designed to deliver precise alignment and reliable performance for AR-15 style platforms chambered in .308" caliber. Crafted from durable steel with a distinctive silver finish, this shim set is built to withstand field and range demands while maintaining tight tolerances that help optimize headspace and receiver alignment. The compact .837 size integrates smoothly with AR .308 assemblies, supporting accurate bedding and consistent function across rifles that demand exacting fit and finish. Ideal for gunsmiths, armorers, and serious shooters, the kit facilitates meticulous setup during barrel, receiver, or bolt installation, contributing to improved accuracy, reduced wear, and dependable cycling. Whether youre upgrading a build, performing maintenance, or tuning an existing rifle for precision shooting, the AR-308 shim set from Primary Weapons Systems offers a practical, metal-to-metal solution that complements steel components and high-grade finishes. In stock for timely completion of refurbishment or customization projects, this shim set provides a straightforward, professional option to enhance fitment and reliability in AR-308 platforms.