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3D printed magazine holder with various picatinny mounting options (STL uploaded)

7K views 23 replies 5 participants last post by  130954 
#1 ·
So I follow user name's suggestions and made several changes to the magazine holder design:
1. close the top
2. make it more slim
3. add mounting option to mount on the bottom of the stock (in parallel with the receiver tube)


Here is the basic design (no mounting option)


Fused with picatinny adapter


3D printing finished. Took 10 hours with fine resolution (0.15 mm)


Installing the spring does take more effort as one end is closed now. But with a pair of tweezers it can be done (Not a problem for me since I have been doing so many times).

Stock bottom mounting


Bottom picatinny rail mounting


Full view


The vertical mounting feels pretty good. The horizontal mounting however is little bit inconvenient when pulling the charging handle or removing the magazine, A slight angle downwards maybe be helpful.

I am still experimenting with 2 other picatinny mounting options (back and side). Will post after design is verified.
 
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#2 ·
STL files can be found here:
https://www.thingiverse.com/thing:4410759

To find the right design files:
1. Download the magazine holder file based on mounting options and side of the release button (left/right)
2. Download the magazine release file based on the side of the release button (left/right)
3. download picatinny tab file

To print:
0.15mm, 80% filling, PLA, use Brim for the holder.
Support is only needed for the magazine release.
 
#4 ·
Thanks that's a very interesting project. The more interesting part is that initially I came with exactly the same idea to use two tabs to hold the magazine. But later ditched the idea since I was looking for a solution that's more reliable and easy to operate.
I like the ergonomic of that design, too. My design is a holder and can not be used as a grip (regarding the comfort and toughness).
 
#6 ·
Have you thought about mounting the magazine parallel to the barrel (back side up) with the butt end pointing aft. The mag holder would work as a foregrip/hand hold. I didn't see anything like that in the Sub 2000 porn.
That's a brilliant idea but would requires some extra effort on modeling to make it strong and comfortable to use as a grip. Will definitely think about that
 
#7 ·
Here is another stock mounting option.

CAD for Stock mount Picatinny rail:


Off 3d printer


Because of the use of brim it things can get a little messy to clean up ... This is after the brim was removed:


Installation. Using M3 screws and nylon nuts.


CAD for magazine holder with back mount Picatinny adapter


Finally everything put together


Can occasionally brush against the holder when pulling charging handle but manageable.

STL Files uploaded to thingiverse:
https://www.thingiverse.com/thing:4410759
 
#13 ·
These are 3D designs available to everyone. I uploaded to thingiverse: https://www.thingiverse.com/thing:4410759
If you have 3D printing experience it would be straightforward to follow. If not I'd be happy to answer your questions and some members here have been using Jawstec.com with good experience.

These are early iterations and I will probably continue improving the design but no promise on anything (time line or final form).
 
#15 ·
That is not a dumb question. No, Jawstec.com is just a 3d printing service provider. They fabricate whatever things you provide them to do. You will have to decide what you need to fabricate, download the model files (STL files) and send them to Jawstec. They might ask you to specify parameters (e.g., material). I do not use them so I do not know but you may be able to check carwash in the forum he recently used their service. Lastly it is always good to do some research before jumping right into something new (3d printing).
 
#20 ·
#22 ·
So I follow user name's suggestions and made several changes to the magazine holder design:
1. close the top
2. make it more slim
3. add mounting option to mount on the bottom of the stock (in parallel with the receiver tube)

Here is the basic design (no mounting option)



Fused with picatinny adapter


3D printing finished. Took 10 hours with fine resolution (0.15 mm)


Installing the spring does take more effort as one end is closed now. But with a pair of tweezers it can be done (Not a problem for me since I have been doing so many times).

Stock bottom mounting


Bottom picatinny rail mounting


Full view


The vertical mounting feels pretty good. The horizontal mounting however is little bit inconvenient when pulling the charging handle or removing the magazine, A slight angle downwards maybe be helpful.

I am still experimenting with 2 other picatinny mounting options (back and side). Will post after design is verified.
Coldfire, your 3d print skills are on point.
Any tips?
Filament types, bed temp, extruder temp?
Thanks for any info..
 
#24 ·
I have the Monoprice IIIP, but used the recommendations from the PLA filament manufacturer, 70C bed and 185C but had layer and bed adhesion issues (even using glue stick or tape). I will try your set up and see if I can get better results.
The Mag and base I printed came out good, but the follower came out like crap (may just buy them if it does not work out).
Thanks for the tips, I will update on my progress.
If it goes well, I will have to look into printing your foregrip mag holder.
 
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