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  • MBX Extreme 155mm Complete STI Style Magazine 9mm/.38 Cal

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Other products by MBX Extreme
Item #: mbx15538-
Reg. Price: $145.00
Our Price: $145.00
Basepad Color  


These are the competition followers which does not lock the slide back but allows for one extra round
INTRODUCING The "NEW" 155mm open Class Magazine from MBX!
* Fantastic Balance
* Easy Reloads
* High Capacity 27 Rds
* 13 Coil Spring Reliability
Great Size and Balance for fast easy Reloads and Draws also Stages when that little extra is needed. Reloads like the "Little Stick" 141.25mm with close to the power of the "Big Stick" 171.25mm.

MBX Complete Tubes were designed to be competition ready with exclusive features to meet the highest demands for today's shooters.

The MBX extreme tube features 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 & 27 and precision cut feed lips.


- All 126mm 9mm/.38 magazines hold 20-21 rounds. <p>
- All 126mm .40/10mm magazines hold 18-19 rounds.<p>
- All 126mm .45ACP magazines hold 16 rounds.<p>
- All 141.25mm 9mm/.38 magazines hold 23-24 rounds.<p>
- All 141.25mm .40 Cal/10mm magazines hold 20-21 rounds.<p>
- All 141.25mm .45ACP magazines hold 18 rounds.<p>
- All 155mm 9mm/.38 magazines hold 27 rounds.<p>
- All 171.25mm 9mm/.38 magazines hold 29-30 rounds.<p>
- All 171.25mm .40 Cal/10mm magazines hold 26 rounds.<p>


Average Rating:
(based on 5 reviews)

Showing 5 Reviews:

by D. Staples
on 7/11/2018
MBX all the way
These mags are great. I can fit 26 rounds in each of the 4 mags that I bought. They can still be reloaded at that round count as well. Be sure to watch their video on how to reload them though, it'll help with reliability and squeezing an extra couple rounds in there.
by Ken
on 7/8/2018
Ran straight out of the bag!
Shot a match straight out of the bag! Runs great and zero issues.
by Brian
on 6/29/2018
MBX 155
This is the perfect size mag for me, reloads smoothly, doesn’t feel too long, and Feeds flawlessly. Although a bit pricey, the quality and reliability 2nd to none
by Noir73
on 5/20/2018
2011 Magazine 9mm
The 155 mm seems to break my will. It seems impossible to make it work. 
I have several MBX Mags but I have to say that the 155mm was a mistake. 

Response from Chuck- Check your feedlips and compare to your others and adjust if necessary. If you still have a problem contact Adrian at MBX. He takes care of issues with his product.
by Jeff Warwick
on 10/3/2017
Can't get these mags to run with 9mm ammo. Have tried new spring and followers they just won't run.

Response from Wendi: MBX has great customer service and stands behind their product. I have emailed MBX and copied you. They will contact you and help you get your mags running.
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