Aiden Posted October 25, 2019 Share Posted October 25, 2019 Hi everyone, I recently put together a toy of sorts. I put a Limcat steel grip on my STI 4.0 Tactical. Picture so the thread isn't useless. Anyway, on to actual questions. My gen 1 STI 9mm mags work great with the grip. They drop free easily and engage the magazine catch fully. When the grip was on my 40SW Limited gun, I had zero issues with SV 40SW mags, STI gen 1 mags, and MBX gen 1 and 2 mags. Same magazine catch. A friend's Atlas tuned Gen 2 STI mags seemed to get stuck just a few millimeters short of the magazine catch. I only tried two of them. They did not engage the magazine catch, and did not drop free. What am I missing? The differences between 9mm and 40SW setup are as follows: MSH is different. Factory STI polymer. Trigger is different. Factory STI polymer. Grip bushings are different. Factory STI. Frame is... Obviously different. Should I blame his magazines? Blame my grip bushings? Gen 2 dimensions are significantly different? Quote Link to comment Share on other sites More sharing options...
tomv Posted October 25, 2019 Share Posted October 25, 2019 It's the magazines. The gen 1 STI mags have a larger angle at the nose than gen 2 and won't get jammed at the top of the magazine. I had a similar issue with 140 mm mbx mags and gen 2 STI magsin an Infinity Open gun. Quote Link to comment Share on other sites More sharing options...
kk4364 Posted October 25, 2019 Share Posted October 25, 2019 I've noticed with my Limcat grip on my SVI that when using STI gen 2 mags, I had to open up the mag catch openings for the mag catch to engage all the way. Sent from my SM-G975U using Tapatalk Quote Link to comment Share on other sites More sharing options...
Aiden Posted October 25, 2019 Author Share Posted October 25, 2019 Interesting. Thanks for the feedback! Quote Link to comment Share on other sites More sharing options...
theWacoKid Posted October 27, 2019 Share Posted October 27, 2019 (edited) Sometimes mags hit the frame and sometimes they're too big front to back for the grip. Before enlarging mag catch I reshape the mag until it fits properly and clears everything. If you enlarge the mag catch hole the mag will sit lower which may be needed but once done, no going back. Edited October 27, 2019 by theWacoKid Quote Link to comment Share on other sites More sharing options...
sauza45 Posted October 28, 2019 Share Posted October 28, 2019 The gen 2 mag need a little more clearance in the frame. You can take the slide off and see where the mags hitting the frame. Just need to file a little off the frame and you are go to go. Quote Link to comment Share on other sites More sharing options...
kk4364 Posted October 28, 2019 Share Posted October 28, 2019 I was able to widen the notch on magazines slightly, and they work perfect. Sent from my SM-G975U using Tapatalk Quote Link to comment Share on other sites More sharing options...
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