“D I Y” Short 5- and Medium 10-Round Magazines!!!

To make a 15 rounds mag, my measurement are taken from bottom edge of the S&W circular logo as a reference line.

1.5" on the front and 1.5" on the back.
thumb.php


I used a small hand saw 6" to cut the bottom first
thumb.php


Then the top edge (where I used a masking tape to mark the edge)
thumb.php


I used a clear epoxy glue to glue the bottom to the mag body (light sanding both surfaces to be glued first to ensure smooth and even contact surfaces)
Just 10 min. into drying I used a sharp knife to remove excess glue that oozed out.
Noted that I reassembled the mag follower and already cut the spring about 6 notches.
thumb.php


Hope this help explain it.
thumb.php
 
Thanks for the info. I made a 10 rounder on Monday, and it came out great! I would just like something with a little larger capacity. I live in a restricted city, so I have to make something with fewer rounds.

Thanks
 
New M&P 15-22

Just picked up my new CA model (10 shot limit mag), took it home, cleaned, slight oil and hauled off to the range. I took 6 different ammo brands that included 30 yr. old Federal Classic, new Federal bulk pack, Winchester, PMC and two brands of cheap Philippine crap. Also included were two kinds of hollow points.
In short, this fantastic gun ate them all without a burp in over 300 rounds. Medium rate fire and rapid fire showed no difference.
This gun has the blue spring with serial DTX 50xx. I am extremely pleased. Very easy to shoot. S&W told me they are working on an actual 10 shot mag. rather than the blocked 20 they now supply in the Democaratic Peoples Republic of California. I put in a back order for a few.
 
I finished the short 10rd mag last Friday and ran about 700 rounds through it on Sunday. Only a few FTF... I adjust the spring at the range (cut 3 more) and it worked flawless! Going to cut my other 3 this week!

Take it apart
1.jpg


Tape it up
2.jpg


Make the cut - Cut 8 levels of the spring
3.jpg


Don't let your dogs eat the shavings while you go to the bathroom!
4.jpg


2 Ton Epoxy! Vised up and stuck for 8hrs
5.jpg


Sand down the sides and polish it up
6.jpg
 
Last edited:
I had a 10rd mag that came with my gun but I can have 25rd here in CT. I wasn't going to use the 10 so I made a 5 out of it.

IMG_0217.jpg


here's the molded in pin that makes a 25 a 10

IMG_0218.jpg


finished product

IMG_0219.jpg


IMG_0221.jpg


I haven't shot from it yet. I didn't notice a post on how many spring coils others used, I used 10 for starters, feels pretty good.

thanks for the inspiration Old No7
 
:update:
I ordered the 10 rd. from S&W and got it in a little over a week, so they are available.
Wish I had the skills to make my own but for those of us that don't these are great.

DSCF0864.jpg


DSCF0863.jpg
 
For those of you that have completed this 25 round to 10 round (or less) conversion, do any of you have the orange followers or load assist pins available? I'm looking for 3 of them and willing to buy or otherwise compensate you.

Thanks;

John
 
"DIY Followers"

For John and others who want the "load assist" buttons, this link will show you how you can easily make your own.

DIY Load Assist Buttons

Sorry, no idea if anyone has extra followers though -- other than S&W -- as the cut-down mags would be useless without 'em. ;)

Good luck.

Old No7
 
Thanks a bunch Old No7. I stopped at the hardware store on the way home from work and picked up 3 #10 machine screws and 3 nylon insert lock nuts. I couldn't find the nylon fasteners :( I also contacted Brett248vista about this since he has the video showing us his loading technique without using the load assist pins so I thought he may have some laying around not wanted. Ended up calling S&W customer service, and they are sending me 3 new pins, NO CHARGE. Don't even have the 15-22 yet, and already am liking the customer service:).
 
My son sent me three 10 limited (long) mags today and I decided that since they only take 10 rounds, I'll cut them down to size.
For those of you who don't have a band saw or table saw.
Or the lazy ones like me who just can't bring yourself to dig your saw out from under a pile of rubble.
You might consider using a miter box with some big clamps, furniture or C-clamps, and a hacksaw.
Its very easy to make clean straight cuts with the mag clamped into a miter box and a hacksaw.
Here's a couple or three pics of my cutting up a mag to show how I did it.

IMG_1127.jpg


IMG_1128.jpg


IMG_1129.jpg


You can see how the hacksaw cleanly cuts the mag body and with it clamped into the miter box there is little or no chance of making anything but a nice straight cut.

Now I just have to figure out how much to cut the spring.
Reading through this thread to see what others have done I think I'll start with cutting it in half and work down from there.
 
First, You mention using a cotter pin to releave tension on the spring. Can you describe this and its instalation a little more for us? And is it possible to provide more/better pics of this step?

Maybe I have a different answer for you. I didn't use the cotter pin because I like the idea of keeping things simple and I still wanted the ability to take the mags apart, at least as much as you can with a limited one.
So instead of using the cotter pin I just put a notch in the spring retainer so I could move the spring forward a little.
This makes it easy to glue the bottom back on, no spring pressure, and I can easily remove the bottom to pull the spring and follower (on 25 round mags) out for cleaning.

Pics ain't the best, but I'm not a photographer and don't pretend to be.

Here's the retainer (I think that's what its called) with the notch cut into it.

IMG_1131.jpg


And here it is on the end of the spring waiting to be pushed up into the bottom of the mag.

edit; OOPS! I took the pic and posted this before I put it back together.
That's when I realized that the retainer is actually on the spring backwards.
But it still accurately shows how the spring fits into the new notch.

IMG_1136.jpg


Doing it this way also eliminates the potential problem of the spring falling into its old position on the retainer and binding up at the bottom on you.

Hope that helps answer your question.
 
Last edited:
Ta-Da, just got around to finishing up the last of my three mags, load assist buttons and all.
Now I have 2 medium length 10 round mags, and 1 short 5 round (that actually holds 7) mag.

IMG_1137.jpg


Thanks #7 these should make shooting off a bench a lot better.
 
Back
Top