AICS Magazine Holder

Although designed initially for rimfire, I have a new second print profile that has been tested and confirmed working with fullbore AICS magazines. Thank you Matt for testing!

MBR Rimfire Accessories Collection

This series is a set of custom 3D-printed rimfire accessories I designed for use with my Bergara B14R. The goal was to create practical, functional kit that also looks clean and cohesive, with matching hex pattern detailing and my MBR logo throughout.

Current designs include:

• AICS Magazine Holder – Tek-Lok compatible, adjustable fit using a resizing insert. 
• Chamber Flag – Clear chamber indicator, featuring the same hex styling and a lanyard loop for easy handling and visibility.
• Control Bridge for MDT Chassis – designed to fit ACC Elite, ACC Premier GEN2, and LSS Gen 3 Competition forends.

All models are designed with real-world use in mind — easy to print, sturdy, and with just enough style to make your gear stand out.

More designs to come in the future.

This is a custom magazine holder designed specifically for the Bergara B14R rimfire AICS magazine.
It’s Tek-Lok compatible and features an adjustable fit using a simple insert – just scale the insert in the Z-axis to fine-tune tension.

I recommend printing at 0.16 mm layer height for a cleaner look and smoother curves. I initially printed the insert in TPU, but it turned out stiffer than expected, so I think PLA would work just fine if you size it correctly for your needs. An alternative would be some kind of rubber spacer, or nothing at all.

The design includes a hex pattern for aesthetics, along with my MBR logo on the front and my Alias on the back, I am sure if you dont want it you could remove it. The edges are rounded for comfort and to prevent snagging on kit and a step is included inside the holder to keep rounds from hitting the bottom.

If you’re running a B14R with AICS mags and want a sleek and functional holster, this should be a perfect fit.

I may release a version in the future removing the step which may allow regular AICS magazines to fit, however I would not be able to test the fit prior to release.

I will not be releasing the raw model files. If you would like to sell these commercially contact me.
 

Tek-Lok

The Tek-Lok model I used is “Hek Lok” By Halfway_Engineered and can be found here: https://makerworld.com/en/models/183145-hek-lok-a-print-in-place-belt-clip-tek-lok-clone

Hardware

Chicago Screws are preferred for attaching the Tek-Lok clip, these would be M5x5mm Chicago Screws. You could probably get away with using M5 nuts and bolts but they would need to be a slim version so they do not snag/rub on your belt or the magazine!

I also used Chicago Screws for the tension adjustment starting with M5x10mm. Adjust the size as required for your level of tension (Dont forget to also adjust the size of the insert if using it).