rbert0005 Posted December 10, 2015 Share Posted December 10, 2015 I downloaded a listing of feedlip dimensions from the STI website a few years ago. We got a batch of 9mm and 45 acp 2011s in the shop yesterday. So for ha, ha's I was measuring the feed lips on the mags and found that what is on the list and what the real numbers were worlds apart. I am talking like .060 to .080 difference. I guess if they work, they work. I was just curious as to why the big difference. Any thoughts? Thanks, Bob Link to comment Share on other sites More sharing options...
Aircooled6racer Posted December 10, 2015 Share Posted December 10, 2015 Hello: If you saw the way they were made you would know why the specs are all over the place. They are better than they used to be in the 40's I know. Thanks, Eric Link to comment Share on other sites More sharing options...
NickBlasta Posted December 11, 2015 Share Posted December 11, 2015 The thing is they don't work. For me, about half the time. The feed lips are too wide for reliable function. You have to form them yourself with a feed lip tool. Link to comment Share on other sites More sharing options...
echotango Posted December 11, 2015 Share Posted December 11, 2015 Dawson mag tuning kit. A must have Link to comment Share on other sites More sharing options...
Bluemooncricket Posted December 11, 2015 Share Posted December 11, 2015 My 9mm mags hand cycled fine but the specs were way off. I never tried them with live fire so I can't comment on that. I tuned them per Dawson's specs and haven't had a malfunction yet. Link to comment Share on other sites More sharing options...
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