Jump to content
Brian Enos's Forums... Maku mozo!
Jonesjohnm

STI 170mm mag going full potato

Recommended Posts

I picked up a new STI 170mm 9mm magazine about a month ago. I installed a Dawson Prec plus 1 basepad. Since doing so the follower seems to get stuck very low in the magazine and turning my mag into a pepper shaker.... any ideas?

 

 

Sent from my iPhone using Tapatalk

Share this post


Link to post
Share on other sites

Hello: Try a different follower/spring. I have not played with the new STI mags yet so I can't say which follower/spring setup will be best. I am not sure if the mag will need the rib lengthened also. It is called a "Salt Shaker" by the way and they suck. Thanks, Eric

Share this post


Link to post
Share on other sites

I use Grams followers & springs in my 170mm STI magazines with NO PROBLEMS WHAT SO EVER...  and I use the spacers also..

Edited by cecil

Share this post


Link to post
Share on other sites
44 minutes ago, cecil said:

I use Grams followers & springs in my 170mm STI magazines with NO PROBLEMS WHAT SO EVER...  and I use the spacers also..

 

Not so loud :wacko:

Share this post


Link to post
Share on other sites
1 hour ago, Jonesjohnm said:

I was able to get pictures


Sent from my iPhone using Tapatalk

 

If I'm seeing the first picture right, we're looking through the feed lips and the follower is completely upside down, right? Is the spring still attached to the follower?

Share this post


Link to post
Share on other sites
15 hours ago, Jonesjohnm said:

I picked up a new STI 170mm 9mm magazine about a month ago.

 

The new style?

62105.jpg

 

Or the old style?

61-052l.jpg

Share this post


Link to post
Share on other sites
10 minutes ago, kneelingatlas said:

 

If I'm seeing the first picture right, we're looking through the feed lips and the follower is completely upside down, right? Is the spring still attached to the follower?

It doesn't look like the follower is upside down, to me.

Share this post


Link to post
Share on other sites

You can see the ribs of the old-style tube in the pics.

Its a stock follower.

Should be good with a Grams kit.

Does appear to be stuck at the bottom of the ribs, follower still upright.

Share this post


Link to post
Share on other sites

Helps to bevel the two vertical  ribs at the bottom so it transitions better coming up from the bottom.

"IT" being the follower, Also suggest a TTI or grams follower

Edited by jcc7x7

Share this post


Link to post
Share on other sites

Atlas Arms has a youtube video on tuning new mags also. Easier watched than explained.

Share this post


Link to post
Share on other sites
 

If I'm seeing the first picture right, we're looking through the feed lips and the follower is completely upside down, right? Is the spring still attached to the follower?

 

 

Yes you are seeing through the feed lips and down the tube, I replaced the follower, no change. I don't have another spring handy to try at the moment. This is the old style tube.

 

 

Sent from my iPhone using Tapatalk

Share this post


Link to post
Share on other sites

I don't know if this is related but a number of years ago I tried the +2 Dawson basepad and had trouble with the bottom rounds getting side by side with the follower when enough rounds were  inserted to cause the follower and rounds to get below the ribs on the side of the mag.  I was able to cure the problem by using the Arrendondo base pad insert.

 

https://www.speedshooter.com/product_detail.cfm?id=AA10&n=Arredondo-Base-Pad-Inserts

Share this post


Link to post
Share on other sites

Buy something like 10ring suggests or fix it like jcc7x7 says.  Either way buying different springs and followers won't fix your problem, their suggestions will.

Personally, I prefer to really fix the problem like jcc7x7 told you.

Good luck.

Share this post


Link to post
Share on other sites

Hello: OK you have the old style STI mags there. Use a Grams spring and follower with a Hardy steel spacer or the Shooters Connection steel spacer. That combo will work very well. I have also used a Dawson 9mm follower and a ISMI spring trimmed to fit the follower. Thanks, Eric

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...