Spacer Jackshaft Kit

The Spacer Jackshaft Kit is a precision aluminum assembly designed for firearms platforms that require jackshaft spacing and alignment in their operating systems. This kit serves as a critical component for builders and gunsmiths who need reliable, repeatable spacing solutions when assembling or servicing semi-automatic rifles and carbines. The included end caps ensure proper retention and alignment, making this kit essential for those demanding both accuracy and durability in their builds.

Manufactured from aluminum in a natural finish, the Spacer Jackshaft Kit delivers lightweight performance without compromising structural integrity. The aluminum construction resists corrosion and maintains dimensional stability across extended use cycles, while the natural anodized finish provides a clean aesthetic suitable for professional-grade builds. The included end caps function as retention hardware, securing the spacer assembly in place and preventing lateral movement or misalignment during operation. At just 0.2 lbs, this compact kit minimizes overall system weight while maintaining the rigidity required for consistent performance.

This kit benefits AR-15 builders, gunsmiths, and firearms manufacturers who require precision spacing components for upper receiver or bolt carrier group assembly. Whether performing maintenance, upgrades, or new builds, users can install this spacer kit with confidence in its fit and function. The compact dimensions (2.1 x 1.25 x 4 inches) make it compatible with standard receiver geometry, while the aluminum composition ensures easy machining or adjustment if custom specifications are required for specialized platforms.