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AlanHinMN

STI Mag with TT 4G2

5 posts in this topic

Can anyone tell me if the New style STI 40 S&W 140 mm Tubes with the engraving on the front with Gram spring and Gram Follower fit the USPSA Mag guage?   If so will I have room for Skate tape numbers on the bottom?

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I don't know why it wouldn't.....but I can tell you that the one Grams spring/follower I had wouldn't stay inside the feed lips of the new mags.......

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You really have to use the gauge to know for sure. The tube and what ever basepad you are using will be the main driver. I have never had Grams followers cause a length issue in Para, STI SV or SPS tubes. If the mag is tuned for max capacity, tape can be an issue. Use the gauge.;)

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1 hour ago, RangerTrace said:

I don't know why it wouldn't.....but I can tell you that the one Grams spring/follower I had wouldn't stay inside the feed lips of the new mags.......

Did you load the mags full for a day and have the spring "set"?  I had that when i first put the grams guts in the sti bodies.  Loaded them up full and then unloaded them the next day and that did the trick

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