Smokecloud Posted May 6, 2016 Share Posted May 6, 2016 I have been running the same 5 STI mags for several years. I originally bought 10 (140mm) tubes and polished them all, but only built 5 to begin with. I used Dawson pads, and Grams followers/11 coil springs. With untuned mags, I got lucky and have them run pretty much perfect after I shaved the edge of two of the followers ever so slightly, all 5 mags load to 19 in my 40sw. I haven't shot USPSA in a couple of years, and mostly have been running the 3gun stuff. I did buy one Dawson follower and swapped it out for one of the grams followers because I was looking to keep the gun from locking back and didn't want to cut anymore of the other follower away. My Grams followers were set to lock back and of course with the 2011, it was usually with 1 rd left in the mag effectively turning the mags into 18 rd mags. I want to assemble the other 5 tubes and have been looking at the Dawson SNL pads, Dawson followers and possibly the ISMI springs in my search for 20 rds without tuning. Im hoping that I don't need to tune them if my luck holds out for the other 5 on the shelf. Is there any issues combining the selected choices im looking at? Ok, the urgency? The Ironman is arriving and there is one stage that the optional round count may exceed my capacities as I favor pistol over shotgun for as much as I can. One extra mag will probably do it, but two would be better, but since were building, it may as well be 5. Link to comment Share on other sites More sharing options...
Maximis228 Posted May 6, 2016 Share Posted May 6, 2016 MBX's all day long. 24 for 9mm. Link to comment Share on other sites More sharing options...
thermobollocks Posted May 6, 2016 Share Posted May 6, 2016 Tough to go wrong with any mix of Grams and Tarans. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted May 6, 2016 Share Posted May 6, 2016 Hello: I have great success with Dawson follower and the ISMI spring cut to fit the follower. I use Dawson SNL base pads also. These should hold 20 rounds and fit the gauge but I would check the gauge to make sure. From what I have seen around here the MBX are hit or miss on whether they work or not. Thanks, Eric Link to comment Share on other sites More sharing options...
shakman Posted May 6, 2016 Share Posted May 6, 2016 I just recently picked up 4 MBX mags to try and rectify some of the feeding issues that had cropped up with both my 2011's. Long story short....AWESOME! They fit 21 reloadable (I shoot .40) and I've had zero problems since switching. Turns out that my previous issues were caused by STI tubes that just need to be tuned. The feed lips are all kinds of jacked-up, but I didn't notice it until I took some calipers to them. Link to comment Share on other sites More sharing options...
warpspeed Posted May 7, 2016 Share Posted May 7, 2016 I've not run anything but Grams tuned mags in 40 S&W ; springs, followers & pads. Never had an issue. Link to comment Share on other sites More sharing options...
LilBunniFuFu Posted May 7, 2016 Share Posted May 7, 2016 Tried and true, grams springs and followers with Dawson pads. Almost any mix and match of the big names will get you what you need. Link to comment Share on other sites More sharing options...
toothandnail Posted May 7, 2016 Share Posted May 7, 2016 MBX Link to comment Share on other sites More sharing options...
Glk21C Posted May 7, 2016 Share Posted May 7, 2016 I prefer Grams everything. IMO his stuff is the best hands down. Good luck Link to comment Share on other sites More sharing options...
Foxj66 Posted May 7, 2016 Share Posted May 7, 2016 I use STI tubes tuned with the dawson tuning kit, grams guts and Dawson SNL pad. I get 20 in all my mags and they run 100% Link to comment Share on other sites More sharing options...
RaylanGivens Posted May 7, 2016 Share Posted May 7, 2016 I just recently picked up 4 MBX mags to try and rectify some of the feeding issues that had cropped up with both my 2011's. Long story short....AWESOME! They fit 21 reloadable (I shoot .40) and I've had zero problems since switching. What did you do to tune your MBX mags so that they will accept 21 rounds of .40 and still be reloadaable? I have two MBX mags and can get them booth to hold 20 rounds reloadable, but not 21... One of mine is a stock MBX, the other has TT follower and spring. Link to comment Share on other sites More sharing options...
turbopower18 Posted May 7, 2016 Share Posted May 7, 2016 I just recently picked up 4 MBX mags to try and rectify some of the feeding issues that had cropped up with both my 2011's. Long story short....AWESOME! They fit 21 reloadable (I shoot .40) and I've had zero problems since switching.What did you do to tune your MBX mags so that they will accept 21 rounds of .40 and still be reloadaable?I have two MBX mags and can get them booth to hold 20 rounds reloadable, but not 21... One of mine is a stock MBX, the other has TT follower and spring. I would also like to know this myself. I have STI Tubes with Grams Springs and Followers with Dawson SNL pads and some MBX mags. I can get 21 in all of them but guarantee your not going to reload them with 21. I usually run 19 in the reload mags because not as much force is needed like 20. Link to comment Share on other sites More sharing options...
Mhall Posted May 8, 2016 Share Posted May 8, 2016 I use STI tubes with TTI guts and the 4g2 base pads. I get 20 reloadable in all 4 that I have. I can fit 21 in them but you really have to push hard to seat. Link to comment Share on other sites More sharing options...
Smokecloud Posted May 8, 2016 Author Share Posted May 8, 2016 20 reloadable would be nice. I appreciate all the replies. Link to comment Share on other sites More sharing options...
orangeman711 Posted May 8, 2016 Share Posted May 8, 2016 Zero problems with MBX. Link to comment Share on other sites More sharing options...
SSGJohnV Posted May 11, 2016 Share Posted May 11, 2016 Give MBX a shot. If it doesn't work Adrian Cobb will make it right. He's been very responsive and helpful in my experience. Link to comment Share on other sites More sharing options...
Nickb45 Posted May 12, 2016 Share Posted May 12, 2016 I'm running STI tubes with tti springs/followers and 4g2 pads. I can get 21 in all 4 of my mags. I run 21 in my #1 mag and 20 in the 3 on my belt just for ease of loading. I just recently tuned my STI tubes with the Dawson kit. I'm tempted to try a couple of mbx tubes just because. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
jchris4769 Posted May 12, 2016 Share Posted May 12, 2016 MBX 100% reliable for me right out the box. No tuning necessary. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
v1911 Posted May 13, 2016 Share Posted May 13, 2016 MBX No fiddling with anything. Just load them up and shoot. Link to comment Share on other sites More sharing options...
enzo357 Posted May 14, 2016 Share Posted May 14, 2016 Sti tubes, grams springs and followers, TTI base pads. 20 reloadable all day. Zero reliability issues. Link to comment Share on other sites More sharing options...
Woodsk Posted May 14, 2016 Share Posted May 14, 2016 MBX - run out of the box Link to comment Share on other sites More sharing options...
rolen1517 Posted May 15, 2016 Share Posted May 15, 2016 I've really happy with the MBX 140 and 170 that I'm running. Link to comment Share on other sites More sharing options...
bradsteimel Posted May 15, 2016 Share Posted May 15, 2016 I'm a big fan of the Taran 7mm basepads and his 4G2 basepads. The work extremely well with Gramms internals. Link to comment Share on other sites More sharing options...
LiloHart Posted May 16, 2016 Share Posted May 16, 2016 I garuntee you will be happy with MBX. Ive been running them for the past year and they have never failed me. I run .40 and all of the mags hold 20 reloadable and 21 seatable (not reloadable). Meaning you can start with 22 if you need it and reload into 20. Give them a shot! I think youll like them! Link to comment Share on other sites More sharing options...
FullMetalJacket Posted May 17, 2016 Share Posted May 17, 2016 I use STI tubes tuned with the dawson tuning kit, grams guts and Dawson SNL pad. I get 20 in all my mags and they run 100% This is my setup as well. They run like tops. There's no need to squeeze 21 Reloadable in the mags IMO, most stages you're going to reload anyway. I just started using mbx in my open guns and have zero issues with them feeding. I am however having issues getting them in fast. Grabbing the smaller base pad just isn't working 100% for me yet. I guess I need more time on the guns to feel more comfortable. I do wish they offered a bigger pad, more like the Dawson's. The mbx springs needed a little bending to get perfect but now they run like they should. Mbx is very responsive and a well run company though. Link to comment Share on other sites More sharing options...
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