• MBX Extreme 140mm Complete STI Style Magazine 9mm/.38 Cal

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MBX Extreme 140mm Complete STI Style Magazine 9mm/.38 Cal

Other products by MBX Extreme

Item #: STI1409C
Reg. Price: $130.00
Our Price: $129.00


These are the competition followers which does not lock the slide back but allows for one extra round

The next generation of race ready 2011 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 & 24 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.

MBX magazines do not lock the slide back.

- 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 10 reviews)

Showing 1 - 5 of 10 Reviews:

by Don
on 4/30/2020
MBX Mags
Great mags, best competition mags on the market. Run right out of the package 
by Michael
on 1/30/2020
Uspsa shooter
These mags are awesome...they work exactly as advertised right outta the pkg...will buy more as needed for other calibers!
by JayDogg
on 11/14/2019
Outstanding product
I used to use STI mags until they started getting particular about who sold them so I switched to MBX and never looked back. Outstanding product.
by jerryz
on 10/31/2018
works good
Put it in my Akai 9mm limited gun.  Works great.  Shooters Connection very prompt delivery.
by Bill Jacobs
on 10/16/2018
Average Shooter
These are good to go out of the box, you do not need to tune them
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