QM Rear Alignment Bar Kit

The QM Rear Alignment Bar Kit by TANNER is a precision chassis alignment tool engineered for shooters and gunsmiths who demand accuracy in firearm setup and maintenance. This specialized tool addresses the critical need for proper rear sight and optic mounting surface alignment, ensuring your shooting platform performs to specification. Whether you're building a custom precision rifle, servicing existing equipment, or troubleshooting sight picture issues, this alignment bar kit provides the reference standard necessary for repeatable, professional-grade results.

Designed with precision engineering principles, the QM Rear Alignment Bar Kit uses a rigid measurement and reference system to verify that rear receiver components sit true and parallel to the bore axis. The extended 40.5-inch length accommodates full-length chassis frames and receiver configurations, while the compact 4.25 x 4.25-inch cross-section allows easy positioning and manipulation in tight working spaces. At 5.3 lbs, the kit balances structural rigidity with manageable weight, enabling single-handed operation during setup and verification procedures without fatigue or measurement drift.

Professional armorers, custom gunsmiths, and precision shooters benefit most from this tool when assembling modular chassis systems, installing aftermarket optic mounts, or diagnosing sight misalignment problems. Installation and use require no special equipment—the bar kit mounts directly into standard receiver slots or alignment points and provides immediate visual and tactile feedback on component trueness. This tool is essential for anyone who builds rifles to match-grade standards or needs to verify that expensive optics are mounted on a properly aligned platform.