Will a 9mm Luger Penetrate Tempered Glass?

Yes — defeats a 6 mm tempered glass barrier
Penetration depth
16 mm (0.6″)
Impact velocity
360 m/s (1181 fps)
Muzzle energy
518 J (382 ft-lb)
Bullet behaviour
Intact

Fired at the muzzle, a representative 9mm Luger load (8 g, FMJ, 360 m/s) reaches roughly 16 mm (0.6 inches) into tempered glass. That is enough to defeat a typical barrier of this material — treat anything behind it as exposed.

About Tempered Glass

Tempered and automotive glass runs about 6 mm thick.

9mm Luger against other materials

MaterialDepth (mm)Depth (in)
Red Brick70 mm2.7″
Concrete38 mm1.5″
Steel A363 mm0.1″
Steel AR5001 mm0.0″
Aluminum 606110 mm0.4″
See exactly what 9mm Luger does to Tempered Glass — open in the calculator →

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