5.45mm Suppressor Alignment Gage

This Geissele Suppressor Alignment Gage represents a precision measurement tool engineered for verifying suppressor bore alignment. Manufactured from hardened steel and ground 0.002 inches under nominal bore diameter, the gage resists wear from powder residue and prevents burring when contact occurs with misaligned baffles. The design accommodates natural variations in barrel bore diameters and straightness commonly encountered across firearms. At 17 inches in length, the gage self-aligns within the bore without requiring an excessively tight fit, allowing small deviations at the mounting interface to be accurately detected before they compound into larger misalignment issues at the suppressor exit. The outside diameter is finished straight to 0.001 inches over its full length, ensuring reliable measurement repeatability. Constructed from hardened steel at 0.5 pounds, this 9mm tool provides consistent performance across repeated use applications for suppressor verification work.