Packer 14mm 1/8in Thick

The Packer 14mm 1/8in Thick is an essential bump stop shim engineered for operators and armorers who demand precision in their tactical platforms. This component addresses a critical need in modern rifle systems: controlling bolt carrier group travel and managing recoil impulse through controlled spacing. Whether you're building a duty rifle, tuning a competition platform, or servicing military-pattern firearms, this shim provides the fine-tuning capability that separates a properly cycled weapon from one prone to reliability issues or accelerated wear.

Manufactured to exacting tolerances, the Packer 14mm shim measures precisely 1/8 inch thick with a 14mm inner diameter, allowing it to sit flush against buffer tube hardware without binding or shifting under recoil. The minimal weight profile (0.02 lbs) ensures it introduces no detectable mass penalty to your system's cycle rate. Constructed from durable material engineered to withstand repeated chambering cycles and sustained fire, this shim prevents excessive bolt carrier group rattle while maintaining the exact headspace clearance your firearm requires for reliable feeding and extraction. Its compact dimensions (2.5 x 0.3 x 2.55 inches) make it compatible with standard AR-platform architectures and similar modular systems.

Law enforcement armorers, military gunsmiths, and serious civilian shooters rely on buffer tube shims to dial in bolt velocity, suppress carrier tilt, and extend component service life. Installation is straightforward: position the shim on the buffer tube before assembly, and it becomes part of your recoil management system. This product pairs with standard A2 or adjustable buffers and works across 5.56 NATO and .308 Winchester platforms. Keep multiple shims on hand—they're an inexpensive insurance policy against reliability drift and a professional-grade tool for anyone responsible for maintaining small arms in high-round-count environments.