Educational Video 9mm Penetration Test 4" Vs. 4.5" Vs. 5.5" Vs. !6" Barrel
This video conducts a 9mm penetration test comparing four different barrel lengths: 4-inch (Glock 19), 4.5-inch (Glock 17), 5.5-inch (Glock 34), and 16-inch (AR-9 carbine). Using standard Federal Champion 115-grain FMJ ammunition, the test aimed to observe the impact of barrel length on projectile penetration through multiple reams of paper. The results showed varying degrees of penetration, with longer barrels generally achieving greater depth, though not always consistently between similar lengths.













