STI Mags

[parsonm1]

I am switching to an STI based gun for Limited and Open class. I see that STI makes three lengths of mags: 126mm, 140mm and 170mm. What's the difference between these mags and how do the base pad lengths fit into the equation?

Sorry for the "define the universe and give three examples" format of the question, but I've been picking up a few used mags (I'm shooting Paras right now) and am don't know if I'm buying the correct mags.

Thanks in advance for any help tendered...

"If you hate your job, don't quit. Just go to work every day and do it really half-assed."  - Homer Simpson

[Phil Dunlop]

The 126mm mags fit the IPSC Standard box, the 140's are USPSA Limited legal and the 170's are Open class legal for both IPSC and USPSA.

hope that helps,

P.D.

[parsonm1]

So all mags work in a standard frame.

That helps. Thanks.