Magnetic Magazine Pouch (MagDock) V3
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Magazine pouch for double stack polymer magazines using magnets for retention built for IDPA / USPSA
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- Creative Commons — Attribution — Noncommercial
This is definitely getting closer to what I’d consider “real” project documentation. I’d also document the file structure since there are multiple body and mounting variants. Someone should be able to open the ZIP and immediately know what each file is for.
OVERVIEW
Everybody loves to dock.
MagDock Mini is a modular, magnetically retained magazine holster system designed for competition use. It supports direct mounting to Mini Tek-Lok and full-size Tek-Lok compatible attachments, or it can be paired with the KlockLok 360 cant adjustment system for fully adjustable magazine positioning.
The design is built around common M4 hardware, inexpensive neodymium cup magnets, and interchangeable printed components. Different magazine bodies, mounting plates, and connector options can be mixed to suit your equipment and preferred belt setup.
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MECHANICAL COMPATIBILITY
Item | Status | Notes |
|---|---|---|
Glock Full-Size 9 mm Magazines | Tested | 17-, 15-, and 10-round factory magazines |
Standard 1911 Magazines | Tested | Single-stack magazines |
Mini Tek-Lok | Supported | Direct mounting |
Full-Size Tek-Lok | Supported | Direct mounting |
KlockLok 360 System | Supported | Adjustable cant with both Mini and Full-Size Tek-Lok mounts |
Magazine Spacers | Supported | Install as required for magazine geometry |
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DESIGN GOALS
Goal | Engineering Rationale |
|---|---|
Modular design | Bodies, mounting plates, and connectors can be mixed without redesigning the entire holster. |
Adjustable cant | Full compatibility with the KlockLok 360 system for rapid cant adjustment. |
Standard hardware | Uses common M4 screws, inserts, and readily available magnets. |
Easy maintenance | Magnets, inserts, and mounting hardware can all be replaced independently. |
Broad mounting compatibility | Supports Mini Tek-Lok, full-size Tek-Lok, and KlockLok 360 mounting systems. |
The holster functions perfectly well when mounted directly to a Tek-Lok. However, it was designed around the KlockLok 360 system, which allows cant adjustment without requiring multiple dedicated mounting holes.
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SPECIFICATIONS
Item | Specification | Status |
|---|---|---|
Fastener Size | M4 | Verified |
Threaded Inserts | M4 Heat-Set Inserts | Verified |
Magnet | Approximately 25–26 mm Countersunk Neodymium Cup Magnet | Verified |
Mounting Pattern | Mini and Full-Size Tek-Lok Compatible | Verified |
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BILL OF MATERIALS (BOM)
Qty | Item | Specification | Optional | Recommended Source |
|---|---|---|---|---|
As Required | M4 Countersunk Screws | Various lengths | No | McMaster-Carr, Misumi, or Amazon assortment |
As Required | M4 Heat-Set Threaded Inserts | Brass | No | Ruthex, CNC Kitchen, McMaster-Carr |
1 | Countersunk Neodymium Cup Magnet | Approximately 25–26 mm | No | DIYMAG or equivalent (Amazon) |
As Required | M4 Washers and Nuts | Standard | No | McMaster-Carr or included with magnet kit |
1 | Cyanoacrylate (Super Glue) | Medium viscosity | Optional | Loctite, Gorilla, or equivalent |
Most magnet kits include the required mounting screw, washer, and nut. Verify before purchasing separately.
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PART TYPES / COMPONENTS
Part | Function |
|---|---|
Glock FS Body | Holster body for full-size Glock magazines |
1911 FS Body | Holster body for standard single-stack 1911 magazines |
Magnet Backplate | Captures the magnet and fastens to the holster body |
Dummy Magnet | Printing aid for test fitting without using a real magnet |
360 Connector (Mini / Full Size) | Rotating interface used with the KlockLok 360 system |
360 Plate (Mini / Full Size) | Mounting plate that interfaces with Tek-Lok compatible attachments |
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FILES INCLUDED
File | Purpose |
|---|---|
MagDock Mini - Glock FS Body | Full-size Glock magazine body |
MagDock Mini - 1911 FS Body | 1911 magazine body |
MagDock Mini - 25mm Magnet Backplate | Retains the magnet and completes the assembly |
MagDock Mini - Dummy Magnet | Printable magnet substitute for fit testing |
MagDock Mini - 2mm 360 Connector Mini | Mini Tek-Lok KlockLok 360 connector |
MagDock Mini - 2mm 360 Connector FS | Full-size Tek-Lok KlockLok 360 connector |
MagDock Mini - 2mm 360 Plate Mini | Mini Tek-Lok mounting plate |
MagDock Mini - 2mm 360 Plate FS | Full-size Tek-Lok mounting plate |
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ASSEMBLY
Install the M4 heat-set inserts using a soldering iron.
If printing the body in TPU, a small amount of cyanoacrylate may provide better long-term insert retention by reducing insert rotation under repeated adjustment.
Install the magnet into the backplate using the supplied hardware.
Assemble the holster using M4 fasteners.
Install magazine spacers if required for your magazine type.
Mount the completed holster directly to a Mini Tek-Lok or full-size Tek-Lok, or attach it to a KlockLok 360 connector for adjustable cant.
The optimal method for securing threaded inserts in TPU is still being evaluated. Standard heat-set installation works well, but I have found that adding a small amount of cyanoacrylate can improve resistance to insert rotation during repeated adjustments.
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RECOMMENDED PRINT SETTINGS
Setting | Value |
|---|---|
Nozzle Diameter | 0.4 mm |
Layer Height | 0.20 mm |
Wall Count | 4 |
Infill | 25–40% Gyroid or Cubic |
Supports | None |
Print Orientation | As Modeled |
Brim | Optional |
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TESTING / VALIDATION
I tested the design with full-size Glock 9 mm magazines and standard single-stack 1911 magazines.
The mounting system has been verified with Mini Tek-Lok compatible mounts, full-size Tek-Lok compatible mounts, and the KlockLok 360 cant adjustment system. Magazine spacers can be installed as needed to accommodate differences in magazine geometry while maintaining consistent magnetic retention.
Heat-set inserts installed directly into TPU function correctly. During testing, I found that applying a small amount of cyanoacrylate around the insert may improve long-term resistance to insert rotation, although additional testing is planned.
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FUTURE DEVELOPMENT
Future revisions will expand magazine compatibility while maintaining interchangeability with the existing MagDock Mini and KlockLok 360 ecosystem. Additional body variants and spacer options will be added as new magazine patterns are validated.