Will Abrahams Posted November 11, 2016 Share Posted November 11, 2016 (edited) I recently ordered some STI mag bodies from Brownells and was expecting to receive the traditional STI mags that I have bought over the last 10 years. I was pleasantly surprised when I saw this new design. I did a search on google and this forum, but could not find any info on a design change. Just thought I would share. Edited November 11, 2016 by Will Abrahams Link to comment Share on other sites More sharing options...
mwray Posted November 11, 2016 Share Posted November 11, 2016 I like it can't believe it took them so long to finally bring the sides all the way down like thatSent from my iPad using Tapatalk Link to comment Share on other sites More sharing options...
EEH Posted November 11, 2016 Share Posted November 11, 2016 Let us know how they work ! Link to comment Share on other sites More sharing options...
Aircooled6racer Posted November 11, 2016 Share Posted November 11, 2016 Hello: That looks good but they really don't need it on the 40 mags? They should have done the 38/9mm ones as well. Not sure if they are going to do that or not? I hope they use the same material for the new mags. Way to go STI ! Thanks, Eric Link to comment Share on other sites More sharing options...
ScottieShootz Posted November 11, 2016 Share Posted November 11, 2016 (edited) Ben Stoeger posted this on instagram a while back and I asked about them but did not get a response. Did not see any comments online on any forum so it made me think it was a joke post. I'm wondering if I need to call shooters connection and find out of the mag bodies when I order are the new style or not. Wonder if the 9mm will need a spacer still??? I don't understand how STI has not done any promo work about the new bodies!? as a marketer, this actually boggles my mind and could swing people away from buying MBX with the new design and bullet count holes drilled. Edited November 11, 2016 by ScottieShootz Link to comment Share on other sites More sharing options...
twodownzero Posted November 11, 2016 Share Posted November 11, 2016 9mm is always going to need a spacer. The 1911 action is based on the .45 ACP cartridge, which is 1/8" or so longer than a SAAMI length 9mm or .40 cartridge. The choices are to either load long or use a spacer or some combination of both. Link to comment Share on other sites More sharing options...
ScottieShootz Posted November 11, 2016 Share Posted November 11, 2016 16 minutes ago, twodownzero said: 9mm is always going to need a spacer. The 1911 action is based on the .45 ACP cartridge, which is 1/8" or so longer than a SAAMI length 9mm or .40 cartridge. The choices are to either load long or use a spacer or some combination of both. Except MBX does not need a spacer, which is their big selling point to me. So if STI has redesigned their body, did they do the same or did the side rail just change? That is where I was going with that. I shoot 38 anyway, but if I wanted to change to 9, using MBX mags I don't need to do anything differently. Link to comment Share on other sites More sharing options...
mikeAZ Posted November 11, 2016 Share Posted November 11, 2016 Finally bought a MBX 170mm mag..... 29 rounds of 9mm (1.145") Ran from day one. At least 1000 thru it now, 100% functional. Link to comment Share on other sites More sharing options...
jcc7x7 Posted November 11, 2016 Share Posted November 11, 2016 SVI and MBX run without spacers in 9mm So if STI goes to the same shape in 9/38 it should run also without a spacer Link to comment Share on other sites More sharing options...
tmz Posted November 11, 2016 Share Posted November 11, 2016 Will Abrahams , would love to hear your review on these what Springs followers you use how many rounds they hold fit and finish give us an update soon as you can thanks Link to comment Share on other sites More sharing options...
dawsonprecision Posted November 11, 2016 Share Posted November 11, 2016 Hello, The 9 mm mag is not going to use a spacer according to what we have been told. We have a bunch on order, but I am not sure of the delivery date. Link to comment Share on other sites More sharing options...
Will Abrahams Posted November 11, 2016 Author Share Posted November 11, 2016 I spoke with someone at STI who said right now they are just doing the 40 SW mags, but they are working on 38/9. I will see how many rounds fit with grams guts and Dawson basepads. Unfortunately, I won't be able to get to the range for a few days to try them out. Link to comment Share on other sites More sharing options...
Loudgp Posted November 12, 2016 Share Posted November 12, 2016 I'm curious as well. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Bullets Posted November 12, 2016 Share Posted November 12, 2016 On 11/11/2016 at 10:58 AM, twodownzero said: 9mm is always going to need a spacer. The 1911 action is based on the .45 ACP cartridge, which is 1/8" or so longer than a SAAMI length 9mm or .40 cartridge. The choices are to either load long or use a spacer or some combination of both. I run some of my 10rd 9mm sti mags without spacers. no issues. my high capacity mags I run the 38 super followers. spacer doesn't fit with 38 follower Link to comment Share on other sites More sharing options...
Sarge Posted November 13, 2016 Share Posted November 13, 2016 On 11/11/2016 at 10:58 AM, twodownzero said: 9mm is always going to need a spacer. The 1911 action is based on the .45 ACP cartridge, which is 1/8" or so longer than a SAAMI length 9mm or .40 cartridge. The choices are to either load long or use a spacer or some combination of both. The spacers are only needed to get the case mouth of the 9mm beyond the first rib of the now old style STI mags. Even when I load out to +1.18 9mm is still wonky without spacers. Link to comment Share on other sites More sharing options...
js1130146 Posted November 14, 2016 Share Posted November 14, 2016 On 11/12/2016 at 6:48 PM, Sarge said: The spacers are only needed to get the case mouth of the 9mm beyond the first rib of the now old style STI mags. Even when I load out to +1.18 9mm is still wonky without spacers. This was my experience as well. They worked most of the time but weren't 100% reliable. The MBX mags I bought to replace them have been so far Link to comment Share on other sites More sharing options...
Will Abrahams Posted November 15, 2016 Author Share Posted November 15, 2016 (edited) I was able to fit 20 rounds with a Dawson basepad and grams guts. Easily reloadable too. It had about 1mm of room in the mag length gauge. I might be able to get 21 with a Dawson SNL basepad, but I imagine it would be very difficult to seat. I will be ordering some SNLs soon and will let you know. Edited November 15, 2016 by Will Abrahams Link to comment Share on other sites More sharing options...
BallisticExpansion Posted January 19, 2017 Share Posted January 19, 2017 On 11/15/2016 at 6:40 PM, Will Abrahams said: I was able to fit 20 rounds with a Dawson basepad and grams guts. Easily reloadable too. It had about 1mm of room in the mag length gauge. I might be able to get 21 with a Dawson SNL basepad, but I imagine it would be very difficult to seat. I will be ordering some SNLs soon and will let you know. How have the new mags been running? I was planning on building a new set for my limited gun this year. Have you tried them with Taran springs/followers? I find they give a little more room than the Grams guts. Link to comment Share on other sites More sharing options...
LowSpeedHighDrag Posted January 19, 2017 Share Posted January 19, 2017 On 11/11/2016 at 11:15 AM, ScottieShootz said: Except MBX does not need a spacer, which is their big selling point to me. So if STI has redesigned their body, did they do the same or did the side rail just change? That is where I was going with that. I shoot 38 anyway, but if I wanted to change to 9, using MBX mags I don't need to do anything differently. I had feeding issues with the 9mm MBX magazines loaded to standard SAMMI length. The rounds just kept jamming occasionally in the magazine. Switched to loading out to 1.200 and the issue disappeared. Link to comment Share on other sites More sharing options...
ChuckS Posted January 19, 2017 Share Posted January 19, 2017 I have run 9mm as short as 1.105" in my SPS mag tubes without issue. No spacer. Link to comment Share on other sites More sharing options...
js1130146 Posted January 19, 2017 Share Posted January 19, 2017 I've run a decent amount of factory 9mm out of my MBX mags with no issues Link to comment Share on other sites More sharing options...
anilson Posted April 24, 2017 Share Posted April 24, 2017 We are seeing lots of issues with the New Style sti mags in both 9mm and 40cal. The 9mm do not have spacers. We are working on solutions now. Link to comment Share on other sites More sharing options...
3gunnuts Posted June 1, 2017 Share Posted June 1, 2017 Any updates? Link to comment Share on other sites More sharing options...
eagle1 Posted June 4, 2017 Share Posted June 4, 2017 I have two of the new style mags in 9mm, one of them ran fine out of the box and the other needed the spring bent to prevent nose dives. I've only put 250 rds through each of them and I haven't had any problems since bending the spring in #2. I will say the mag that was giving me nose dives has a lighter spring than the trouble free mag, and the feed lips are tighter at the front than the other one, .350 compared to .353. I'm using them in a very tight new CK thunder, and I'm going to order the Dawson mag tuning kit to get them perfect. Link to comment Share on other sites More sharing options...
louu Posted June 4, 2017 Share Posted June 4, 2017 14 minutes ago, eagle1 said: I have two of the new style mags in 9mm, one of them ran fine out of the box and the other needed the spring bent to prevent nose dives. I've only put 250 rds through each of them and I haven't had any problems since bending the spring in #2. I will say the mag that was giving me nose dives has a lighter spring than the trouble free mag, and the feed lips are tighter at the front than the other one, .350 compared to .353. I'm using them in a very tight new CK thunder, and I'm going to order the Dawson mag tuning kit to get them perfect. You probably don't need the mag tuning kit. What you really need is grams spring kits. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now