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

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

Other products by MBX Extreme

Item #: 1004-
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 11 reviews)

Showing 1 - 5 of 11 Reviews:

by Brenda Britt
on 12/10/2020
Thank you for processing orders so quickly!  My package arrived just days after the order date, and was exactly as I requested.  I will continue to use this company for future orders!  Thank You so much
by Cameron Tanner
on 6/29/2020
Best 2011 mags available!
Can’t beat them!
by Open3gunner
on 10/3/2019
Excellent as always
It was a quick delivery the merchandise was it like it was described .
And the order was called in very good customer service too. Thanks 
by Kitzmiller
on 8/6/2019
Why use a 140 ever again?!
The 155 mm mag is obviously between the 140 and 170 with regard to capacity. I comfortably get 4 additional rounds in the 155. However, the capacity isn’t the selling point.. It’s the size of the mag tube that seals the deal. The mag loads faster and more efficiently for me, because there’s more room to get my hand on it when I reload. I’m probably not going to buy another 140 mag. Last but not least, I didn’t have to swap springs or followers with this mag like I typically do when I buy a new magazine. What a score! 
by TomF
on 4/22/2019
MBX 155mm magazine
I got two of these magazines, they arrived looking nice with their high polished tubes and great fitting base pads. I did a quick function test to make sure there were no surprises, they worked great, holding 25 rounds in 9mm. I've since used them in a 6 stage USPSA match with no problems at all. I am very happy with the look, feel, function and I highly recommend them.
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