ARREDONDO MAGAZINE EXTENSION

Add up to 6 Rounds! The Arredondo Glock Mag Extension increases the capacity of your Glock magazines (+6 for 9mm, +5 for .40 S&W, +4 for .45 ACP/10mm). Comes with extended 10% magazine spring and dissasembly tool. Watch the installation video to fully understand how this item fits and functions. USPSA limited 140mm length legal Magazine not included Will not function in post-ban, 10 round magazines