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- Springs for 2011 magazines
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Product Description
*Designed to work with TTI Follower.
TTI Magazine Spring for STI, SV, & Rescomp Magazine Tubes 11 coil (140MM) magazine spring for the TTI competition follower.
Designed exclusively by ISMI to work only with the TTI follower and made with ISMI quality and precision.
Each coil compresses and stacks into the neighboring coil to provide the highest capacity available in your magazines.
Use the TTI Mag Spring with the TTI Base Pad and TTI Follower for maximum capacity.
Product Reviews
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Great spring-flawless operation
Posted by Tom on Jul 13th 2020
These springs with second gen STI mag tubes, SV ultra thin followers and 4mm base pads have worked flawlessly in my 140mm mags. Springs stay strong and easy on-off
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More rounds?
Posted by Tyler Huff on Jan 10th 2020
So I actually picked up another round with these springs. I do find it a little odd that it's only 13 coils and the m&p +5+6 spring is also 13 coil.
The springs seem to have pretty good tension is about all I can say for now. I have had the time to actually test them but I did go from 28 to 29 rounds in a 170 configuration -
Not sure if these work
Posted by Rodel Ibus on Jun 5th 2018
Before I bought these springs for my STI mags I asked customer service if these would work with my stock followers. Customer service said the stock follower will work with their springs. With this said I did not order the TTI SV/ST universal follower. Well apparently they don’t work with the stock follower as customer service said. So remember to order the TTI follower if you own an STI.
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Good springs but shipping too expensive.
Posted by Rocky Gilmore on Oct 3rd 2017
I like the Taran spring, follower, baseplate set up for my 2011 but they need to offer a better deal in shipping. 3 9 dollar spings and $10.00 shipping...
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Easily a Go-To for STI Mag enhancements
Posted by Forrest Cooper on Aug 1st 2016
They do what they're advertised to do, and do it well. They last long enough to be worth the cost and are dependable, especially on match-days.
