These are the competition followers which does not lock the slide back but allows for one extra roundThe next generation of race ready PARA ORDNANCE style magazine made from 410 heat treated stainless steel for ultimate durability
MBX Complete Tubes were designed to be competition ready with exclusive features to meet the highest demands for today's shooters.
The new MBX extreme tube features newly designed body contour running the full length of the magazine for improved reliability and performance allowing for a wider follower to improve stability also featuring round location holes for 10 & 21 and precision cut feed lips.
* All tubes are designed to work with MBX components other manufacturers' parts may be used in conjunction with MBX parts and tubes but may require adjustment or fitting for maximum reliability- All 141.25mm .40 magazines hold 20-21 rounds.- All 141.25mm 9mm/.38 magazines hold 23-24 rounds.- All 171.25mm 9mm/.38 magazines hold 29-30 rounds.
MBX Complete Tubes were designed to be competition ready with exclusive features to meet the highest demands for today's shooters.
The new MBX extreme tube features newly designed body contour running the full length of the magazine for improved reliability and performance allowing for a wider follower to improve stability also featuring round location holes for 10 & 21 and precision cut feed lips.
* All tubes are designed to work with MBX components other manufacturers' parts may be used in conjunction with MBX parts and tubes but may require adjustment or fitting for maximum reliability- All 141.25mm .40 magazines hold 20-21 rounds.- All 141.25mm 9mm/.38 magazines hold 23-24 rounds.- All 171.25mm 9mm/.38 magazines hold 29-30 rounds.
(3)
Average rating 10 out of 10
( based on 3
reviews )

MBX Mag for RIA 2011 40 cal used in USPSA Limited
Excellent functioning in practice and local matches (2 so far). Very easy to disassemble and clean.
best mag
Crazy price but you can't beat these for competition. The stock mags just don't compare with extentions added. I use these now with zero issues and 20 rounds of 40 on board.
Excellent Magazines for USPSA