MBX DEFENDER SERIES ULTIMATE CARRY MAGAZINES
FOR GLOCK PISTOLS




MBX Defender Glock 19 & 17 New Spring and Follower

April 2023 we launched our NEW updated Spring and new Follower combination for the MBX Steel Glock Defender G19 & G17 Magazines. Now allowing for higher round capacity, our G 19 now holds up to 17 rounds and the G17 up to 20 rounds.

We do recommend using a loading device such as (Uplula) when new to help set the springs memory and obtaining maximum capacity. As with all performance magazines this will aid break-in to help achieve a smooth and much easier to load magazine.

G19 16-17rds
G17 19-20rds




For MBX Extended Steel Glock Magazines click here
*Basepad hex set screw DO NOT ADJUST DAMAGE WILL OCCUR.
Slide pin is designed to slide down to remove and up to retain no Allen wrench needed.
MBX has grown to become the "Gold Standard" in the Competition Magazine World. With our Proven Durability, Extreme Reliability, Innovative tube and Follower design, and Capacity which exceeds ALL conventional magazines.MBX have taken the technology and attributions we gained in competition design and incorporated them into the finest, highest capacity and most reliable personal defense magazines available in the world. We offer with confidence a life time warranty on MBX Defender tubes.

Defender Series Magazine Information