The added weight of the Brass +5 Magazine Extension helps stabilize the gun during rapid fire shooting. It also helps drop the magazine out of the handgun for faster reloads! It's very popular with competition shooters as it will help you shoot faster and more accurately. Everybody else loves them too because it provides 5 extra rounds in 9mm and 4 extra rounds in .40 caliber and .357 SIG.
Designed for Glock 17/22 and Glock 19/23 magazines...Gen1, Gen2, Gen3, Gen 4 and even the new Gen 5 magazines.
Easy to install, watch the video online here!