jedmyers Posted November 10, 2014 Share Posted November 10, 2014 I just received 3 SVI Mags for my STI open gun. Ive done a lot of searching and I was curious if anyone has found any new tricks to make them works efficiently in my gun. Does everyone still file the mag catch hole or modify the mag catch itself? thanks! Link to comment Share on other sites More sharing options...
Flatland Shooter Posted November 10, 2014 Share Posted November 10, 2014 I only have one of the new style SVI magazines. The notch in the magazine was opened up by FGW and it runs just fine. Holds 29 rd of 9x19 just like my old style SVI 170. Bill Link to comment Share on other sites More sharing options...
jedmyers Posted November 10, 2014 Author Share Posted November 10, 2014 thank you, im realizing that's going to be the easiest way to go with these Link to comment Share on other sites More sharing options...
meanzbullet Posted November 12, 2014 Share Posted November 12, 2014 I didn't have to modify anything on mine. Have you tried them? Link to comment Share on other sites More sharing options...
mwc5 Posted November 12, 2014 Share Posted November 12, 2014 Just bought a new SVI 9mm 140 from SV last week - it's VERY tight in my newer (late winter 2013) STI. Takes a serious yank to pull it out of the grip frame. The mag catch slot will also need modded ................ Link to comment Share on other sites More sharing options...
jedmyers Posted November 12, 2014 Author Share Posted November 12, 2014 I have. You have to jam the mags in for the catch to grab them, which of course when you go to drop the mag it doesn't drop freely. I ordered the ck arms mag catch to give it a try, as I heard it works well with no modifications. It should be in Thursday. Link to comment Share on other sites More sharing options...
rc51g Posted November 12, 2014 Share Posted November 12, 2014 i use svi mags exclusively. i did not do anything to mag release just put a little bevel on the frame so the mag would fit into it. made sure slide would not drag or mag hit the ejector. works great. drops out of my 2 phoenix trinity grips with no drag at all. come to think of it i did smooth out the mag release button holes in the mags but i am like that. everything needs to be smooth or polished. Link to comment Share on other sites More sharing options...
meanzbullet Posted November 12, 2014 Share Posted November 12, 2014 Just bought a new SVI 9mm 140 from SV last week - it's VERY tight in my newer (late winter 2013) STI. Takes a serious yank to pull it out of the grip frame. The mag catch slot will also need modded ................ Messing with the hole in the mag is probably not going to help that. You may need to squish the mag a little at the top front to back. Take the slide off and see where it is hitting. Link to comment Share on other sites More sharing options...
jid2 Posted November 12, 2014 Share Posted November 12, 2014 The mag hole mod is not the correct approach, it will place the round lower on the feed ramp and can cause feeding issues. You need to work on the frame to make the mag seat fully. Sometimes the SVI mags are wide and need to be ground or sanded slightly. I found the best process is to mark the mag with a sharpie and insert it a few times and find the interference points and then fix those. Link to comment Share on other sites More sharing options...
jedmyers Posted November 15, 2014 Author Share Posted November 15, 2014 just an update on this issue, I received my CK Arm mag catch today. it solved the issues with my mags not dropping out of my gun and you don't have to force the mags in the gun for them to catch. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted November 15, 2014 Share Posted November 15, 2014 Jerrod: That is good to know. Dropping the mag down 0.020" is about all that is needed and does not cause any feeding problems. Say hi to your dad and brother for me. Thanks, Eric Link to comment Share on other sites More sharing options...
turkeypoker Posted November 23, 2014 Share Posted November 23, 2014 Anybody tried using the SVI mags in the PHONIEX grip? Link to comment Share on other sites More sharing options...
Iceman2733 Posted November 23, 2014 Share Posted November 23, 2014 Anybody tried using the SVI mags in the PHONIEX grip?Yes they drop fine or at least my 3 SVI mags do Link to comment Share on other sites More sharing options...
krazykj03 Posted December 8, 2014 Share Posted December 8, 2014 which mags are better and why? Link to comment Share on other sites More sharing options...
LeeNZ Posted December 19, 2014 Share Posted December 19, 2014 I know a number of guys here with STI's who have tried SV and SPS mags. The end result has been to get the genuine STI mags rather than trying "Band Aid" type fixes. I was the STI distributor in NZ many years ago so that's my 2 cents worth. Link to comment Share on other sites More sharing options...
Foxbat Posted December 19, 2014 Share Posted December 19, 2014 which mags are better and why? The STI mags have much better tolerance control, their dimensions are far more predictable - if one works in your gun, all others will work too. I've had many different open guns, and never met one in which a random STI mag did not work. I never had to tune them... period. With SVI there is huge lottery going on. The variations in dimensions are large, even for the same batch of magazines. For instance, one ouf ot a batch of three, all bought with the same new SVI gun, would not drop free. One of the three would consistently go salt shaker. I had been getting much more predictable results with STI's, but I like the looks and feel of the SVI better, so I use them. Link to comment Share on other sites More sharing options...
Paul-the new guy Posted December 19, 2014 Share Posted December 19, 2014 whickever ones work are the best. I like SV mags for 9mm because they don't need spacers. But for anything else STI mags work fine for me. Link to comment Share on other sites More sharing options...
mwc5 Posted December 19, 2014 Share Posted December 19, 2014 which mags are better and why? The STI mags have much better tolerance control, their dimensions are far more predictable - if one works in your gun, all others will work too. I've had many different open guns, and never met one in which a random STI mag did not work. I never had to tune them... period. With SVI there is huge lottery going on. The variations in dimensions are large, even for the same batch of magazines. For instance, one ouf ot a batch of three, all bought with the same new SVI gun, would not drop free. One of the three would consistently go salt shaker. I had been getting much more predictable results with STI's, but I like the looks and feel of the SVI better, so I use them. What he said Link to comment Share on other sites More sharing options...
ogiebb Posted December 19, 2014 Share Posted December 19, 2014 I use only SV mags in all my STI/SV based guns. but i only use old style mags though. some OLD Style SPS mags work great too. very rare but gives me a nice reliable 21 round reloadable. Link to comment Share on other sites More sharing options...
jedmyers Posted December 19, 2014 Author Share Posted December 19, 2014 ive shot one full match with my Sti using the svi mags. It didn't go well, the bullets would nose dive right into the ramp. So I'm trying to figure out if maybe the bullets are to long or if it's the mags. As for the sps mags, I've got 3 tubes, 2 140's and a 170 but I've never used them. Link to comment Share on other sites More sharing options...
jid2 Posted December 20, 2014 Share Posted December 20, 2014 (edited) This is with a modified mag release.... See my post in the beginning of the thread. You need to fix the root cause of the problem. Get the mag where it needs to go. Edited December 20, 2014 by jid2 Link to comment Share on other sites More sharing options...
Aircooled6racer Posted December 20, 2014 Share Posted December 20, 2014 Hello: The problem with a lot of the SVI mags is that the feed lips are too narrow. Open them up and change the angle the bullet rests at and they are good. I use the old style SVI mags but still have had to squeeze them to make them square. The new STI mags are great a lot better than they used to be. Thanks, Eric Link to comment Share on other sites More sharing options...
jid2 Posted December 20, 2014 Share Posted December 20, 2014 Yeap check what Eric is saying as well. I had to do both. Link to comment Share on other sites More sharing options...
jedmyers Posted December 20, 2014 Author Share Posted December 20, 2014 Awesome I appreciate it guys. I will check them out and hopefully get them going Link to comment Share on other sites More sharing options...
pjb45 Posted December 20, 2014 Share Posted December 20, 2014 I have had 10 SV magazines. No real problems to speak. Link to comment Share on other sites More sharing options...
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